Design and manufacture conform to BS5352 , MSS SP - 118;
Connection ends conform to
Socket welded ends conform to ANSI B16.11 , JB/T1751
Screw ends conform to ANSI B1.20.1 , JB/T7306
Butt-welded conform to ANSI B 16.25 , JB/T12224
Flanged ends conform to ANSI B16.5 , JB79
Test and inspection conform to: API 598 , GB/T13927 , JB/T9092
Structure features:
Bolted bonnet or welding bonnet

Materials conform to ANSI/ASTM
Main materials:
A105 , LF2 , F5 , F11 , F22 , 304(L) , 316(L) , F347 , F321 , F51 , Monel , 20 Alloy