1,DN:15~400mm(NPS 1/2 inch~16 inch) 2,PN:1.6~42.0MPa(ANSI 150Class~2500Class) 3,for gas, petrol, ... etc Description for ProductTechnical Parameters PN(Mpa): 1.6, 2 ... .5, 4.0, 6.3, 10.0, 16.0, 32.0, 42.0, 70.0, class300 ... We cooperate with so many big company like Petrol China.2.We supply with many big abroad project just like ...