... ,etc 2.left hand 3.ISO9001-2000certificate 4.can accept small order Compression SpringMaterial:50CrVA,60Si2MnA,70,T9A,65Mn,etcspring steel ... , bicycle, lamps and lanterns, jig, switch, locks, gifts,Handicraft, mould, electrical appliances, many USESBoth of the company and the factory comply with ...