... shock absorbers 4.Best price 1. Product Name: 2.5mm Spring Of Grade 452. Material: Steel GradeGB StandardCarbon%Silicon ... 70#,80#,72A,72B,82B.7. Wire Gauge:0.2mm,0.3mm,0.4mm,0.5mm,0.6mm,0.7mm, ... .2mm,3.35mm,3.5mm,3.7mm,3.8mm,4mm,4.2mm,4.5mm,5mm,5.5mm,6mm,6.5mm,7mm,8mm,9mm,10mm ... ,11mm,12mm.Our Factory And Office BuildingMachine Of Our FactoryOur Spring Products 2.5mm ...