????????????????
???????
???????Q611F/H
?????????DN10-DN100
????????304??316??316L
??????????????
????????PN1.6-PN6.3MPa
?????????????о
???????PTFE??-20?桫180?? PPL??-20?桫250??
??о?????304??316??316L
????????304
?????????????塢???塢?????????????