Feder mit konstanter Kraft ist für Computer und ot verwendet

Constant Force Spring: Features: 1) Thickness:0.65/0.7mm/Width:25/30mm/Length:1300/1400mm 2) Exterior: No injuries,pollution and other color. 3) Materail: Carbon steel SK5 Our company can provide reasonable price, fast shipping, timely delivery, continue developing advancing and innovation, the customers can get high quality products, preferential price, and good service from the company. Our company sincerely welcomes customers from both home and abroad to contact with us. Yours drawing and samples are also welcome!