Fixtures exposed to hood interior (i. e. tap nozzle) shall be made of brass with chemically resistant black vinylcoating.
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。
2
By coating the blend of poly (vinyl alcohol) and chitosan on the inner surface of poly (acrylonitrile) hollow fiber ultrafiltration membrane, the composite membrane for pervaporation was obtained.
本文将聚乙烯醇和壳聚糖混合物涂到聚丙烯腈中空纤维内表面制备用于渗透汽化过程的中空纤维复合膜。
3
Can be used as base metal coating materials used vinyl resin system by plastisol or solution, polyester or acrylic, etc.