Wafer Butterfly Valve na Gearbobx
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Wafer urukurubụba valvụ nwere gearbobx
Wafer urukurubụba valvụ nwere igbe worm gear. The worm bụ nke ductile ígwè QT500-7 na worm aro, jikọtara na elu-nkenke nhazi, nwere àgwà nke eyi iguzogide na elu nnyefe arụmọrụ.