?綯???????
???????
?綯??????????????????(????)?????????????綯??????????в????÷????????????????????????????????е????????????ī316???????????????????????????????????????綯????????????????????10MPa~25MPa??????550????????????У?????????????????????????????????????
???????Z61Y
?????????NPS8"~12"
?????????Class1500~2500Lb
???????ASME B16.34 JB/T3595
????????飺JB/ T3595 MSS SP-61
?в庸??ASME B16.11
??????ASME B16.25
?????????ASME B16.5
??????????31011402021123??
??????????31011402021123??
