Yantai K9 grade ductile iron pipe, K9 ductile iron pipe wholesale level, Shunxiang ductile pipe provided by Shunxiang ductile pipe. Liaocheng Shunxiang Building Materials Co., Ltd. (www.lcsxjc.com) Shandong Liaocheng Premium Business League certification company, has Shunxiang other brands, has a good reputation, honesty, service-oriented "business alliance Service" icon on the page We will be happy to serve you! Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron, ductile iron pipe, cast iron pipe fittings of high quality flexible K9 ductile iron pipe wholesale level, cast iron pit wells quality of our products. Classification pipe joints flexible expansion joints with a single flange limited telescopic joint, double flange limited telescopic joint, and other expansion joints. Pipe joints are flexible expansion joints of metal products, which have a higher tensile and compressive strength ductile iron pipe K9 class standard, superior soft sealing performance, easy handling features, is widely used in electric power, metallurgy, chemical industry, water supply and drainage and sewage treatment and other industries. Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron, ductile iron pipe, cast iron pipe fittings of high quality flexible K9 grade ductile iron pipe manufacturers, cast iron pit wells quality of our products. According to factors trench soil, groundwater, slotted section, loading conditions, such as design, require a solid and reliable, to prevent landslides, shall not prejudice the support tube and pipe steady. T-type interface in a vertical or horizontal pipe bend should be located buttress. Buttress size should be determined based on the calculated diameter, angle, work pressure and other factors