1.Ten years experience of welding manufacture 2.Approved EN ISO 3834-3, DIN EN ISO ... supplier welding bus seat supporter AL-0055 Materialiron or other metal meterialServiceOEM, ODMQualityISO9000:2008 , EN15085-2, ISO3834-3Techniquewelding, stamping, bending, ... s supplier of welding seat baseQuality certificat: ISO9000:2008 , EN15085-2, ISO3834-3 High technique of welding, stamping, bending, coating ...