yoshitake减压阀 GD-27S-DN20,GD-27S-DN25,GD-27GS-DN32,GD-27GS-DN40,
160
170
4.8
3.5


32A(1 1/4)
220
224
8.0
6


40A(1 1/2)
200
224
8.3
7


50A(2)
220
239.5
10.8
11


65A(2 1/2)
220
329
20.6
2

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