... galvanized iron,copper, brass,aluminum,alloy steel,tinplate and other metals,alloy, Facilityelectric welder,Grinder,liner ... , wending,stamping,welding,threading,drilling, grinding, coating,assembling and so on. Surface treatmentaccording to customer's demands, ... indusry, air condition industry, automotive industry, machine assembling industry Through ISO9001:2000 ,ISO14001:2004 Certification,with ...