{"id":2293,"date":"2026-06-29T05:23:48","date_gmt":"2026-06-29T05:23:48","guid":{"rendered":"https:\/\/hydrauliccylindersprice.com\/?post_type=product&p=2293"},"modified":"2026-06-29T05:24:54","modified_gmt":"2026-06-29T05:24:54","slug":"factory-price-hydraulic-cylinder-telescopic-for-dump-trailer","status":"publish","type":"product","link":"https:\/\/hydrauliccylindersprice.com\/bs\/proizvod\/factory-price-hydraulic-cylinder-telescopic-for-dump-trailer\/","title":{"rendered":"Factory Price Hydraulic Cylinder \u2014 Telescopic For Dump Trailer"},"content":{"rendered":"
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COLD WEATHER GUIDE<\/span>
\nDUMP TRAILER \u00b7 FACTORY PRICE<\/span><\/div>\n

Factory Price
\nTelescopic Cylinder
\nFor Dump Trailer
\nCold Weather & Arctic Operation<\/span><\/h2>\n

Dump trailers in Canada, Scandinavia, Russia, and northern US states operate in temperatures that push standard telescopic hydraulic cylinders<\/a> beyond their comfort zone. Below \u221220 \u00b0C, the fluid thickens, the seals stiffen, and condensation introduces water into the system. This page explains each cold-weather challenge and what to specify differently for reliable sub-zero operation.<\/p>\n<\/div>\n

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\u221240 \u00b0C<\/div>\n
Rated Operation<\/div>\n<\/div>\n
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Dump<\/div>\n
Trailer<\/div>\n<\/div>\n
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2\u20136\u2033<\/div>\n
Bore<\/div>\n<\/div>\n
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Factory<\/div>\n
Direct Price<\/div>\n<\/div>\n<\/div>\n
Arctic-Rated Seals<\/span>
\nLow-Temp Fluid Spec<\/span>
\nISO 9001<\/span><\/div>\n
<\/div>\n
\"Hydraulic<\/div>\n<\/div>\n<\/div>\n

Korea Ever-Power manufactures telescopic cylinders for dump trailers operating in climates down to \u221240 \u00b0C. The cylinder itself is steel \u2014 it handles the cold. The challenges are in the fluid, the seals, and the operating practices. Standard specifications that work perfectly at +20 \u00b0C can fail at \u221230 \u00b0C: the fluid becomes too viscous to flow through the internal passages, the seals lose elasticity and leak, and ice crystals from condensation block the hydraulic filter and damage seal surfaces. Specifying the correct fluid grade, seal material, and operating procedures prevents these cold-weather failures.<\/p>\n<\/section>\n

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Cold Weather Dump Trailer Cylinder \u2014 Parameters<\/h2>\n
\n\n\n\n\n\n\n\n\n
Bore \/ Rod \/ Stroke \/ Pin<\/td>\n2\u20136\u2033 \/ 1.125\u20134\u2033 \/ 4\u2013100\u2033 \/ 0.5\u20132\u2033<\/td>\n<\/tr>\n
Port Options<\/td>\nG \/ SAE \/ NPT \/ M<\/td>\n<\/tr>\n
Cold Weather Seal Option<\/td>\nNBR low-temp compound (to \u221240 \u00b0C) or PTFE (to \u2212200 \u00b0C)<\/td>\n<\/tr>\n
Recommended Fluid<\/td>\nISO VG 22 or VG 32 mineral \/ HV multi-grade \/ PAO synthetic<\/td>\n<\/tr>\n
Body \/ Certification<\/td>\nSteel \/ ISO 9001 \/ 100% pressure tested<\/td>\n<\/tr>\n
Lead Time \/ Warranty<\/td>\n25\u201335 days \/ 1 year<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

<\/p>\n

\"Telescopic<\/section>\n

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Three Things That Change Below \u221220 \u00b0C<\/h2>\n

Standard telescopic cylinders are designed to operate between \u221220 \u00b0C and +80 \u00b0C with VG 46 mineral oil and NBR seals. Below \u221220 \u00b0C, all three system components \u2014 fluid, seals, and reservoir air space \u2014 begin to create problems. Understanding these three mechanisms is the key to cold-weather specification.<\/p>\n

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1. Fluid Viscosity Increases Exponentially<\/h3>\n<\/div>\n
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Hydraulic fluid viscosity does not increase linearly with decreasing temperature \u2014 it increases exponentially. VG 46 mineral oil at +40 \u00b0C has a viscosity of 46 cSt. At \u221220 \u00b0C, the same oil may exceed 2,000 cSt \u2014 over 40\u00d7 thicker. At \u221230 \u00b0C it can approach 10,000 cSt \u2014 effectively a gel. This thick fluid cannot flow through the cylinder’s internal passages, the pump struggles to draw it from the reservoir, and the tipping speed drops to near zero. The dump trailer becomes inoperable \u2014 not because the cylinder has failed, but because the fluid is too thick to move.<\/p>\n

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Solution:<\/strong><\/p>\n

Use lower viscosity fluid: VG 22 or VG 32 for cold climates, or HV multi-grade (maintains stable viscosity across wide temperature ranges). For extreme arctic operations (below \u221235 \u00b0C), synthetic PAO fluid provides the lowest pour point and best cold-flow properties.<\/p>\n<\/div>\n

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Caution:<\/strong><\/p>\n

Low-viscosity fluid that flows well at \u221230 \u00b0C will be very thin at +40 \u00b0C \u2014 increasing internal leakage past seals in summer. If your dump trailer operates year-round in a climate with both extreme cold winters and hot summers, HV multi-grade or synthetic fluid is the only practical choice.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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2. Seal Elasticity Decreases<\/h3>\n<\/div>\n
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Standard NBR seals maintain adequate elasticity down to approximately \u221230 \u00b0C. Below this temperature, NBR becomes stiff and loses the ability to conform to the bore surface \u2014 creating micro-gaps between the seal lip and the bore that allow oil to pass. The result is external leakage on cold starts that may self-heal once the system warms up (the seal regains flexibility), or it may persist as permanent leakage if the cold cycling has created a compression set in the seal material.<\/p>\n

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Solution:<\/strong><\/p>\n

Specify low-temperature NBR compound (rated to \u221240 \u00b0C instead of standard \u221230 \u00b0C) or PTFE seals (rated to \u2212200 \u00b0C, virtually unlimited cold tolerance). Low-temp NBR costs approximately 10\u201315% more per seal set than standard NBR. PTFE costs more but provides the widest temperature range of any seal material.<\/p>\n<\/div>\n

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Avoid FKM:<\/strong><\/p>\n

FKM (Viton) seals are excellent for high temperatures but become brittle below \u221220 \u00b0C. Never specify FKM for cold-climate dump trailers \u2014 the seal will crack and fail catastrophically at the first hard freeze.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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3. Moisture Condensation and Ice Formation<\/h3>\n<\/div>\n
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The air space above the fluid in the reservoir breathes \u2014 warm moist air enters during operation, then cools overnight. The moisture condenses on the cold reservoir walls and drips into the fluid as water droplets. At sub-zero temperatures, this water freezes into ice crystals that circulate through the hydraulic system: blocking the suction filter, scratching the bore and plunger surfaces, and damaging seal lips. Water contamination is the most insidious cold-weather problem because it is invisible until it causes a failure.<\/p>\n

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Solution:<\/strong><\/p>\n

Install a desiccant breather on the reservoir filler cap \u2014 it absorbs moisture from the incoming air before it enters the reservoir. Change the desiccant element regularly (it saturates faster in humid climates). Drain any visible water from the bottom of the reservoir at every fluid change.<\/p>\n<\/div>\n

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Additional protection:<\/strong><\/p>\n

In extreme arctic environments, consider a reservoir heater \u2014 an electric element that maintains the fluid above freezing overnight. This prevents ice formation and pre-warms the fluid for faster cold-start operation. Reservoir heaters are standard on arctic construction equipment and mining trucks.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Cold Start Procedure \u2014 Warming the System Before Full Load<\/h2>\n

Even with the correct fluid grade and cold-rated seals, a telescopic cylinder should not be operated at full load immediately after a cold start. The fluid and seals need time to warm up to operating temperature. Forcing full-pressure, full-speed operation on cold, thick fluid creates excessive pressure spikes that can damage seals, blow hose fittings, and overload the pump. This warm-up procedure applies to all hydraulic cylinder applications<\/a> \u2014 not just dump trailers.<\/p>\n

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Step 1 \u2014 Idle the engine for 3\u20135 minutes<\/strong><\/p>\n

Allow the PTO pump to circulate fluid at no load \u2014 the fluid flows through the system and begins to warm from the pump’s internal friction. Do not activate any hydraulic functions during this initial warm-up period.<\/p>\n<\/div>\n

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Step 2 \u2014 Cycle the cylinder at no load, half speed<\/strong><\/p>\n

With the dump trailer empty, extend and retract the telescopic cylinder 2\u20133 times at reduced engine RPM (lower pump flow = lower pressure spikes). This circulates fluid through the cylinder’s internal passages and warms the seals through frictional heat.<\/p>\n<\/div>\n

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Step 3 \u2014 Proceed to full load operation<\/strong><\/p>\n

After the warm-up cycles, the fluid viscosity has decreased to an operable range and the seals have regained flexibility. Now proceed with normal loaded operation. Total warm-up time: approximately 5\u201310 minutes depending on ambient temperature. At \u221230 \u00b0C, allow the full 10 minutes; at \u221210 \u00b0C, 5 minutes is typically sufficient.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Cold Weather Specification Checklist \u2014 What to Order Differently<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Component<\/th>\nStandard (\u221220 to +80 \u00b0C)<\/th>\nCold Weather (\u221240 to +60 \u00b0C)<\/th>\n<\/tr>\n<\/thead>\n
Hydraulic fluid<\/td>\nVG 46 mineral<\/td>\nVG 22\/32 or HV multi-grade or PAO synthetic<\/td>\n<\/tr>\n
Seal material<\/td>\nStandard NBR (\u221230 \u00b0C)<\/td>\nLow-temp NBR (\u221240 \u00b0C) or PTFE<\/td>\n<\/tr>\n
Reservoir breather<\/td>\nStandard vent cap<\/td>\nDesiccant breather<\/td>\n<\/tr>\n
Reservoir heater<\/td>\nNot needed<\/td>\nRecommended below \u221230 \u00b0C<\/td>\n<\/tr>\n
Cold start warm-up<\/td>\nNot critical<\/td>\nRequired \u2014 5\u201310 min no-load cycling<\/td>\n<\/tr>\n
Hose specification<\/td>\nStandard rubber<\/td>\nCold-flex rubber (rated to \u221240 \u00b0C minimum)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Cylinder itself \u2014 no change needed: <\/strong>
\nThe steel cylinder body, chrome-plated plunger, and welded construction are unaffected by cold temperatures. Steel becomes stronger (not weaker) as temperature decreases. The cold-weather specification changes are in the seals, the fluid, the hoses, and the operating procedures \u2014 not in the cylinder’s structural components. This is why the cylinder price for cold-weather operation is similar to the standard price \u2014 the only cost difference is the seal material upgrade (10\u201315% on the seal cost, approximately 1\u20133% on the total cylinder price).<\/span><\/div>\n<\/section>\n

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OEM & ODM \u2014 Ordering for Cold Climate Operation<\/h2>\n
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What You Provide<\/h3>\n<\/div>\n
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Standard specs (bore, rod, stroke, stages, mounting, ports, pressure) PLUS: minimum operating temperature for your region, hydraulic fluid type and grade you plan to use, and whether you need low-temp NBR or PTFE seals. State “cold climate operation, minimum \u2212XX \u00b0C” in your inquiry so the engineering team can verify the seal specification and advise on any additional considerations.<\/p>\n<\/div>\n<\/div>\n

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What the Factory Delivers<\/h3>\n<\/div>\n
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Drawing with confirmed cold-rated seal specification. Samples available. Production 25\u201335 days (low-temp seals may add 3\u20135 days if sourcing is required). 100% pressure test with certificate. 1-year warranty. Browse the complete telescopic cylinder range for dump trailers<\/a> \u2014 all configurations available with cold-weather seal options.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

\"hydraulic-cylinder-workshop-5\"<\/p>\n

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Cold Weather Operation \u2014 FAQ<\/h2>\n
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My dump trailer works in both \u221230 \u00b0C winter and +35 \u00b0C summer \u2014 what fluid do I use?<\/h3>\n

HV (high viscosity index) multi-grade mineral oil or PAO synthetic fluid. These fluids maintain usable viscosity across a much wider temperature range than single-grade oils. An HV multi-grade fluid that flows adequately at \u221230 \u00b0C will also resist thinning adequately at +35 \u00b0C \u2014 it is the only practical choice for year-round operation in continental climates with extreme seasonal swings. Single-grade oils (VG 22 for winter, VG 68 for summer) would require seasonal fluid changes \u2014 impractical for most fleet operations.<\/p>\n<\/div>\n

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Will cold weather damage my telescopic cylinder permanently?<\/h3>\n

The steel cylinder body is unaffected by cold. However, operating with fluid that is too viscous can cause pressure spikes that damage seals and hose fittings. Seal damage from cold cycling (repeated stiffening and flexing) can create permanent compression set \u2014 the seal never fully recovers its original shape, leading to ongoing minor leakage even in warm weather. The damage is to the seals and hoses, not the cylinder body. Correct fluid grade and cold-start procedures prevent this damage entirely.<\/p>\n<\/div>\n

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Does the cold-weather specification cost more?<\/h3>\n

Minimally. The cylinder price with low-temp NBR seals is approximately 1\u20133% higher than standard NBR \u2014 the seal material is the only change in the cylinder itself. PTFE seals add approximately 3\u20138% to the cylinder price. The larger cost is on the system side: HV multi-grade or synthetic fluid costs 2\u20134\u00d7 more than standard VG 46, and a desiccant breather adds a small annual maintenance cost. But these system costs are shared across every hydraulic cylinder<\/a> and aerial platform cylinder<\/a> on the same vehicle \u2014 not just the dump trailer hoist cylinder.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Field Reports<\/h2>\n
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E<\/div>\n
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Erik S. \u2014 Scandinavian Gravel Hauling<\/div>\n
Verified Purchase \u00b7 Norway \u00b7 May 2025<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Our dump trailers haul gravel year-round in northern Norway \u2014 temperatures reach \u221235 \u00b0C in January. We specified low-temp NBR seals and use PAO synthetic fluid (VG 32 equivalent). Combined with a 5-minute warm-up cycle every cold morning, the Ever-Power telescopic cylinders have operated through two full winters without a single cold-related failure. Previous supplier’s cylinders with standard NBR seals leaked every January \u2014 the cold cycling destroyed the seal lips within one winter season. The low-temp NBR upgrade cost approximately 2% more per cylinder \u2014 trivial compared to the cost of mid-winter seal replacements.<\/p>\n<\/div>\n

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M<\/div>\n
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Marc L. \u2014 Canadian Mining Contractor<\/div>\n
Verified Purchase \u00b7 Alberta, Canada \u00b7 March 2025<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n<\/div>\n

Mining operations in northern Alberta \u2014 ambient hits \u221240 \u00b0C regularly. We use PTFE seals (rated to \u2212200 \u00b0C, effectively unlimited cold tolerance), PAO synthetic fluid, desiccant breathers on every reservoir, and 120V reservoir heaters that keep the fluid above \u221210 \u00b0C overnight. The Ever-Power cylinders with PTFE seals have been running for 14 months in these conditions \u2014 zero cold-related issues. The complete cold-weather package (PTFE seals + synthetic fluid + heaters + desiccant breathers) is standard practice for arctic mining \u2014 and the Ever-Power cylinder is a reliable component within that system.<\/p>\n<\/div>\n

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J<\/div>\n
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Jake W. \u2014 Northern US Fleet<\/div>\n
Verified Purchase \u00b7 Minnesota, USA \u00b7 February 2025<\/div>\n<\/div>\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n<\/div>\n

Our dump trailers work in Minnesota \u2014 cold but not extreme arctic (\u221225 to \u221230 \u00b0C worst case). Four stars because I initially ordered with standard NBR seals and VG 46 fluid \u2014 the standard specification. Tipping was painfully slow on cold mornings and one hose fitting blew from the pressure spike of pumping cold gel-like fluid. After reading this cold weather guide, I switched to HV multi-grade fluid and ordered the next batch of Ever-Power cylinders with low-temp NBR seals. Problem solved \u2014 the combination works down to \u221228 \u00b0C with the warm-up procedure. Should have specified cold-weather from the start.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Other Hydraulic Cylinder Categories<\/h2>\n
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\"Forklift\"<\/p>\n

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Cold-Rated Forklift Cylinders \u2192<\/a><\/h3>\n

Low-temp seal options for cold storage forklift fleets.<\/p>\n<\/div>\n<\/div>\n

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\"AWV\"<\/p>\n

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Arctic AWV Cylinder Options \u2192<\/a><\/h3>\n

Low-temp seals available for all 15 AWV cylinder types.<\/p>\n<\/div>\n<\/div>\n

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\"All\"<\/p>\n

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Hydraulic Cylinder Factory \u2014 All Climates \u2192<\/a><\/h3>\n

Arctic to tropical \u2014 every cylinder customised to your environment.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"
Factory price telescopic hydraulic cylinder for dump trailers \u2014 with a cold weather and arctic operation guide. When ambient temperatures drop below \u221220 \u00b0C, three things change inside a telescopic cylinder: the hydraulic fluid thickens dramatically (increasing pressure drop and slowing extension speed), the seals stiffen and lose flexibility (increasing friction and leak risk), and condensation inside the reservoir introduces water contamination (causing ice crystals that block passages and damage seals). This page explains what happens in the cold, what to specify differently, and how to operate and maintain telescopic cylinders in sub-zero environments. Custom bore 2\u20136 inch, stroke 4\u2013100 inch. G\/SAE\/NPT\/M. ISO 9001. Korea Ever-Power OEM & ODM.<\/div>","protected":false},"featured_media":2271,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[851],"product_tag":[],"class_list":["post-2293","product","type-product","status-publish","has-post-thumbnail","product_cat-telescopic-hydraulic-cylinder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/product\/2293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/comments?post=2293"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/media\/2271"}],"wp:attachment":[{"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/media?parent=2293"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/product_brand?post=2293"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/product_cat?post=2293"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hydrauliccylindersprice.com\/bs\/wp-json\/wp\/v2\/product_tag?post=2293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}