... petroleum,water,gas,ect 2.2PE,3PE coating anti-corrosion pipe 3.ISO9001,ISO14001certtificate Quick DetailsPlace of Origin: Hebei ... Detail: 30 Days or according to the quantitySpecifications1.anti-corrosion pipe for petroleum,water,gas,ect2.2PE,3PE coating ... 4.high tightness, insulation performance strong 5.anti-chemical corrosion and water resistance strong 6.environmental protection and water ...