其主营业务为工业金属管件的研发、生产和销售，主要产品为管件、法兰、管系和压力容器。
The main business of metal pipe fittings for industrial R & D, production and sales, the main products are pipe fittings, flanges, piping and pressure vessels.
系脱件为压簧卡连接件或尼龙搭扣等任一连接件，拉线选用金属链。
The tie-untie piece is either connecting pieces of press spring clip connecting piece or a nylon fibula, etc. and a zipper selects a metal zipper.
系脱件为压簧卡连接件或尼龙搭扣等任一连接件，拉线选用金属链。
The tie-untie piece is either connecting pieces of press spring clip connecting piece or a nylon fibula, etc. and a zipper selects a metal zipper.
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