引进原装意大利COSTER大盖嘴阀门，雾状呈扇形、不堵、手感好，P、D、R喷嘴可互换，以达到不同检测喷雾要求。

Imported from Italian COSTER valve with big cover, flabelliform fog-spray, good handle with no jam, nozzle P, D, R is commutative, meeting with the different testing requirements.

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耳阀门具有扇形结构和全阀体结构。

Lug valves are furnished in scallop and full body designs.

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