|
口径（英寸）
|
压力等*ANSI Class
|
||
|
150
|
300
|
600
|
|
|
1
|
●□
|
●□
|
●
|
|
1 1/2
|
●□
|
●□
|
●
|
|
2
|
●□
|
●□
|
●
|
|
3～6
|
●□
|
●□
|
●
|
|
8～12
|
●
|
●
|
●
|
