Diaphragm type check valve
... 缓闭止回阀 Dashpot check valve 隔膜式止回阀 Diaphragm type check valve 锥形隔膜式止回阀 Tapered diaphragm type check valve ...
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短语
锥形隔膜式止回阀
Tapered diaphragm type check valve
环形编织隔膜式止回阀
Annular woven diaphragm type check valve
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