butterfly valve
... butterfly throttling valve 蝶形节流阀 butterfly valve 蝶形阀;蝴电动蝶阀; 衬胶蝶阀 butterfly valve of lock 舟闸蝶形阀 ...
Wafer Type Butterfly Valves with Rubber Itning ; Butterfly Valves with Rubber Itning ; Itning ; DJSDF
Manually rubber lined butterfly valve
Pneumatic rubber lined butterfly valve