... check-valve nozzle 止回阀喷嘴 ; 止回阀喷嘴儿 check-valve lever 止回阀杆 CHECK-VALVE 切止阀 ...
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check-valve lever spring 止回阀杆弹簧
check valve lever spring 止回阀杆弹簧
Spring-actuated valve to be used on pump discharge. Swing check with outside lever and spring to be used on sump, sewage and storm drain lines.
弹簧执行机构止回阀用于管道排放。外置操作手柄和弹簧执行机构的旋启式止回阀用于污水坑、排污和雨水排泄管道。
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