Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron pipes, ductile iron water pipe high quality, flexible cast iron pipe fittings, cast iron pit wells quality of our products. Adjustment when installing the product expansion joints at both ends of the flange connection length supply ductile pipe factory direct, diagonal sequence tighten the gland bolts evenly ductile pipe, adjust the limit nut, so you can make the amount of piping within the scope of the freedom retractable telescopic k-type ductile pipe fittings, locking telescopic amount to ensure the safe operation of the pipeline. Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron pipes, ductile iron water pipe high quality, flexible cast iron pipe fittings, cast iron pit wells quality of our products. Ductile iron pipe material requirements 1 ordinary cast iron pipe: pipe body should be the manufacturer's name and trademarks, manufacturing date and work pressure and other markers, pipe and pipe fittings shall comply with existing national standards and have certificate. Must not have cracks, cold shuts, deflated depression, uneven and other defects, smooth surface should be complete, firmly attached. k-type ductile pipe fittings | Zhangjiakou ductile pipe | Shunxiang ductile pipe provided by Shunxiang ductile pipe. If you have any questions or consultation of this information, please contact us now! Our Company: Liaocheng Shunxiang Building Materials Co., Ltd. (www.lcsxjc.com) Contact: Manager Ge, or click on "Commercial Union customer service" direct dialogue with us!