... Socket Welding, Lap Joint,Threaded and Plate etc.Pressure Ratings: Class 150, 300, 600, 900, 1500 and2500.Pressure Ratings: PN ... A350LF2,A182 F304/F304L,F316/F316L 5 ANSI B16.47 B(API605) 26"--60" 75--900LBS BL,WN A105, ... F304/F304L,F316/F316L 7 AWWA C207 4"--144" Class B,D,E,F T/1 PL A105,A181 A36, ... pipe fittings and so on.We have perfective quality system control and we got the approval of ISO9001 and ...