... 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 ...
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短语
对夹式衬胶蝶阀
Wafer Type Butterfly Valves with Rubber Itning
;
Butterfly Valves with Rubber Itning
;
Itning
;
DJSDF
手动衬胶蝶阀
Manually rubber lined butterfly valve
气动衬胶蝶阀
Pneumatic rubber lined butterfly valve