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Company Profile 北京中工聯合工程技術有限公司 China/Beijing Main Product:Tubular Moulds/Plate Moulds/Mould Assembly/Cast Roll/Slide Gate Refractories/Porous Plugs/Mortar/Bricks(MgO-C,etc)/Castables/Stuffing Sand/Tundish Refractories, etc
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