... welded screws ,rivets ,rivet nuts and others .Feature:1.Raw Material:alloy alunminum,brass,aluminum,steel,stainless steel etc2.End usages ... Environmental protection with the raw material4.Good quality and reasonalbe price5.OEM can be required 6.specifications:1.4-6 ( ... equipments,machinery,furniture,Vessel,electron and so on. The material includes steel,stainless steel, copper, Allumimum,iron. we ...