... size: DN10~3000 (3/8" ~ 120") Widely used. Neck Flat Weld Flange Model: WB PH-38 Feature:1. Sealing face type ... , ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2,ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70 Stainless ... more details, please feel free to contact us! Neck Flat Weld Flange Model:WB PH-38