... reclaimed plastic materialCoil spring: Double coil spring and diameter is 4mmClamps: Thickness is 2mmSlat spring: ... requirements. The products we supply are all excellent quality and reasonable price.2.Our mainly products ----bicycle & bicycle ... , inner tube, basket, rim, brake , Chain cover, chainwheel & crank, axle, mudguard, handlebars, brake cables,freewheel and other accessories 3.Should any of ...