Tube is welded pipe or cap in the threads in pipe fittings to cover the wall.
管帽是焊接在管端或装在管端外螺纹上以盖堵管子的管件。
Our factory specializes in producing three types of polypropylene PP-R pipe, fittings, tube cards, debit seat tube and other products.
本厂专业产三型聚丙烯PP-R管材、管件、管卡、管扣座等产品。
Our company mainly engaged in steel tube, building materials, pipe insulation, corrosion-resistant pipes and pipe fittings and other connections.
本公司主要经营钢管，建材，保温管道，防腐管道及管道连接配件等。
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