????????????
???????
5????????????????15.0Mpa????????????????????????????估?????????????????????????????
???????Z41Y
?????????NPS1/2"~1(1/2)"
?????????Class150~600Lb
????????????????????塢?????????????
???????????????????в庸???????????????
?????????ANSIB16.34??API600??API602
??????磺ANSIB16.5
???????ANSIB1.20.1
???????ANSIB16.10
????????磺ANSIB16.11
?????????飺API598