... SGS factory, 3) Eco-friendly, 4) 100% raw material KC358 Zinc Alloy Japanese Keychain....1) No limited in quantity2) Custoimized size ... so on,which are mainly made of copper,iron,aluminum,zinc alloy,tin as the main material,produced by Taiwan' ... Advanced and complete production equipment..... MaterialCopper,Iron,Stainless steel,Chrome,Zinc Alloy,Aluminum,Any other metals material are welcome.Feature1. ...