yoshitake减压阀 GD-26GS-DN20,GD-26GS-DN25,GD-26GS-DN32,GD-26GS-DN40,GD-26GS-DN50,

224
4.5
6


40A(1 1/2)
180
224
4.7
7


50A(2)
220
239.5
6.5
11

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