液控单向阀SV20GA，SV20GB，SV20PA，SV20PB，SV25GA，SV25GB，
95
135
17.3
-
146


30
97
120
70
-
40
75
84
17
29
115
173
15.5
-
179


SL
10
66.5
85
40
7.9
21
42

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