Specifications

1. fully-automatic production
2. shorter lead time and best price for extension spring
3. strict quality control and managemen

1.   main material: carbon spring steel ,alloy spring steel, refractory steel, stainless steel, high temperature resisting alloy, corrosion-resistant alloy and bronze

               

2.   Finish: chromium-plated, zinc-plated, gold-plated, silver-plated, copper-plated, tin-plated and nickel-plated, painted, spraying powder, coloring

3.   Strict quality control, prompt delivery, competitive price and excellent service of the extension spring

                         

4.   Customized drawing and samples are welcomed

5.   OEM is provided. Safe packing for the rough transportation including plastic bags/carbon, tray, reel and so forth