float copper 中文意思是什麼
float copper
解釋
浮銅-
Float operated valves - specification for piston type float operated valves copper alloy body excluding floats
浮子閥.第1部分:活塞式浮子閥 -
Float operated valves - specification for diaphragm type float operated valves copper alloy body excluding floats
浮子閥.第2部分:隔膜式浮子閥
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