... certificate according to-EN559,BS3212,DVGW Cixi xingcheng gas tackles co.,ltd, located in Cixi, Ningbo, China, covers a land area of ... regulator we produce have the CE certificate(regulator-EN12864, rubber hose-EN559,BS3212,DVGW), exported to more than 20 countries and ... ! Specification: material:PVC ID:6.3MM 8MM 10/11MM GAS HOSE/BUTANE HOSE