Zhejiang Jingyi Standard Components Co., Ltd. [China]

sem screw combined with spring washer,lock washer,conical washer, plain washer,squre washer,tile washer

sem screw combined with  spring washer,lock washer,conical washer, plain washer,squre washer,tile washerWe are the best supplier and manufacturer of sems screws in Wenzhou.We have 100 set cold forging machines,60 sets automatic assembly machines,20 sets punch,ect.Can finish your order in time.

sem screw/combined screw/screw with washer