... manufacture 2.Approved EN ISO 3834-3, DIN EN ISO 3834-3, ISO9001:2008 3.Benz's supplier custom welding made ... seat base Quality certificat: ISO9000:2008 , EN15085-2, ISO3834-3 High technique of welding, stamping, bending, coating, injection moldingCompany ... Zhejiang Province. We specialized in manufacting car, bus, train and autobike's spare parts and all products need to technique such as welding ...