brass check valve
... brass ball valve 黄铜球阀 ; 铜球阀 brass nonreturn valve 铜止回阀 brass whistle valve 铜笛阀 ...
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... brass globe valve 黄铜球阀 brass check valve 铜止回阀 brass gate valve 黄铜闸阀 ; 黄铜门阀 ; 铜闸阀 ...
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整套浮筒开关带有大直径铜浮子，黄铜浮标和可调浮球止回阀。
The float switch assembly is complete with a large diameter copper float, brass float rod and adjustable float stops.
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