???????????????????
???????
1????????????????С????????
2?????????????????????????????????????? ???????á?
3????????????????????????????
4??????????????????С??
5????????????????????????????????????????? ????????????????????????
???????H76H/W
?????????NPS 2"??60"??DN50??1500mm
?????Χ??Class150??600Lb??PN10??100MPa
????????-29?桫+425??
??????????????????????
???????API6D??JB/T8937??API594
???????API594??JB/T8937
????????ASME B16.5??GB/T 9113??JB/T 79??HG/T 20592
??????飺API 598??GB/T 13927??JB/T 9092
???-???????ASME B16.34 ??GB/T12224
