Fixtures exposed to hood interior (i. e. tap nozzle) shall be made of brass with chemically resistant black vinyl coating.
通风柜里面的配件(龙头喷嘴)由黄铜构成，外面环氧树脂喷涂。
Fixtures exposed to hood interior (i. e. tap nozzle) shall be made of brass with chemically resistant black vinyl coating.
通风柜里面的配件(龙头喷嘴)由黄铜构成，外面环氧树脂喷涂。
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