CERTIFICATES Our Qualifications Yongxin focuses on the production of stainless steel welded pipes. Click to enlarge International Quality System Certification ISO9001:2015 & GB/T19001:2016 Click to enlarge AD 2000 W0 - German Pressure Vessel Code Material Manufacturer Certification Click to enlarge Certification for product conformity of ASME ASTM Material Standard Click to enlarge Certification for product conformity of ASME ASTM Material Standard Click to enlarge EN 10312 Welded stainless steel tubes for the conveyance of water and other aqueous liquids Click to enlarge EN 10312 Welded stainless steel tubes for the conveyance of water and other aqueous liquids Click to enlarge Eu Certification of Quality System Approval as per the Pressure Equipment Directive Click to enlarge EU Construction Products Regulation CPR1090 Certification for Mechanical Engineering Structural Load-bearing Products Click to enlarge Eu Certification of Quality System Approval as per the Pressure Equipment Directive Click to enlarge EU Construction Products Regulation CPR1090 Certification for Mechanical Engineering Structural Load-bearing Products Click to enlarge American 3-A Sanitary Standards Symbol Authorization