Valve Wafer Butterfly na Gearbobx
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Wafer urukurubụba valvụ nwere gearbobx
GỤKWUOWafer urukurubụba valvụ nwere igbe worm gear. A na-eme irighiri nke ígwè ductile QT500-7 na eriri irighiri, jikọtara ya na nhazi nhazi dị elu, nwere njirimara nke nguzogide eyi na oke nnyefe dị elu.
