Internal thread and plug welding cut-off valve

1、Design and manufacture conform to BS5352
MSS SP-118;
2、Connection ends conform to:
1)Socket welded ends conform
to ANSI B16.11;JB/T1751
2)Screw ends conform to
ANSI B1.20.1;JB/T7306
3)Butt-welded ends conform to
ANSl B16.25; JB/T12224
4)Flanged ends conform to ANSI B16.5;JB79
3、Test and inspection conform to:
API 598; GB/T13927; JB/T9092