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Quick Details

  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: zhuoyue
  • Model Number: D13042204
  • Style: Cylinder
  • Load Type: Extension
  • Material: Stainless Steel
  • Usage: Industrial
  • color shape: as you need

Packaging & Delivery

Packaging Details export packing as you demand
Delivery Time 30 days


1.metal tension spring,precise tension spring,galvanized tension spring,metal spiral spring

  • metal tension spring,precise  tension spring,galvanized tension spring,metal spiral spring
        Wire Diameter: 0.02 to 20mm;

  • Raw material: stainless steel, carbon steel, spring steel, alloy spring steel, refractory steel, high temperature resisting alloy, corrosion-resistant alloy, brass, and bronze (most of them are imported from Korea, Germany and Japan)
  • Finish: zinc-plated, nickel-plated, chromium-plated, silver-plated, gold-plated, and imitation gold-plated
  • High-tech equipments:
    • Advanced CNC spring machinery imported from Japan, Germany, Sweden, and Taiwan
    • Advanced grinding and shot peening machinery
    • Precise tensile strength testers, compression testers, endurance testers, and magnetic powder flaw detectors are available
  • Good service: warm, quick response, and good after-sales service
  • Eco-friendly products: RoHS compliance
  • Good quality control: serious QC procedure to assure the good quality in mass production
  • Experienced in handling exports to the US, Europe, Japan and other countries and rigions
  • OEM/ODM services
  • Summary: Extension spring is one of our main products. We accept OEM orders. We can produce various of extension spring with different hooks, such as long loop, German hook, British hook and side hook. Our extension springs are with diameter from 0.2mm to 20mm. These extension springs are widely used.


    Material: usually use spring steel, carbon steel, stainless steel, music wire, alloy steel, etc.


    Wire diameter: we can produce extension spring with wire diameter from 0.2mm to 20mm


    Surface: usually oiled, shot peening, galvanization, nickel plating, chroming, powder coating, etc.

  • Technical parameters & procedure:

    Before sampling or producing, we need to know some important factors, such as material, wire diameter, outer diameter, inner diameter, free length, hook radius etc. or technical drawing.

    Usually we produce extension spring as below steps: winding, making hooks, grinding, shaping, quenching, stereo type, dynamometry, surface treatment, inspection and packing. The technical details and procedure are very different based on different springs requests.


  • Packing: usually packed by sack or cartons. We can do according to buyer's requests.

  • QC/quality control:

    We passed ISO9001:2008 international quality system.

    Before producing, we have confirmed technical drawing and approved samples. And we have pre-production meeting.

    When producing, we checked every 15 minutes for every steps by professional.

    Before packing, we tested and checked all products. If OK, will packed.


    Application: Our extension springs are widely used in computer, electron, home appliances, camera, instrument, motorcycle, automobile, engineering machinery, mining machinery, construction machinery, and other industry.

  • Lead-time: usually 7-10 working days for samples, 25-30 working days for production. The correct lead-time would base on your exact orders.


    Minimum quantity: usually 5000-10000pcs


    Payment terms: total amount below or equal to USD5000.00, 100% T/T in advance

                 Total amount above USD5000.00, 50% T/T in advance, 50% T/T before shipment


    Delivery terms: usually FOB shanghai or ex-works;










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China (Mainland) | Manufacturer, Trading Company
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The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $343,000
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