Leading products include steel, ductile iron pipe and water use fittings and building drainage W-type flexible cast iron pipe and ductile iron pipe fittings, pipes and boiler grate attachment accessories specialist. Companies in strict accordance with ISO9001: 2000 quality management system standard build quality system, use of advanced equipment and the latest technology at home and abroad casting products, provide users with reliable quality assurance. Products: the use of the production of seamless steel as a raw material for processing, in a relatively short period of time by the fine seamless thicker, to the specifications required by customers. Products undergo strict composition analysis, metallurgical testing, dimensional inspection, surface quality inspection, pressure ring test, tensile testing, hardness testing, hydrostatic testing, leak test, the thickness of the lining and the outer coating, such as quality inspection. All of the above test items qualified rear allowed the factory. GB ductile iron pipe specifications --- k9 grade ductile iron pipe specifications Spot / T-type connector to pipe ductile iron pipe Daquan --- GB k9 grade ductile iron pipe ---- T-ductile iron pipe essence has iron, steel performance, excellent corrosion resistance, ductility is good, easy to install, mainly used for municipal, industrial and mining water, gas and so on. As a new pipe, ductile iron pipe, with good mechanical properties, saving metal, construction is simple, economical cost, high reliability dn50 ductile iron pipe, ductile iron pipe corrosion resistance dn500, long life and other characteristics, elongation greatly better than gray cast iron pipe, close to the pipe, after anti-corrosion treatment, the useful life of 3-5 times the steel pipe, the company's convenient and simple installation of ductile iron pipe, ductile iron pipe suitable for the construction of 200 under a variety of terrain and climate , simple installation can greatly speed up the progress, reduce project costs, is widely used in more than 90% water, gas pipeline, the use of cast iron pipe production accounted for. dn100 ductile iron pipe, virtue tube industry, Zaozhuang Ductile Iron Pipe Co., Ltd. Liaocheng by virtue of Industry. dn100 ductile iron pipe, virtue tube industry, Zaozhuang ductile iron pipe is virtue Pipe Co., Ltd. Liaocheng (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) this year The new upgrade launch, the above picture is for reference only, please call the telephone or pictures on this page, for the latest information, contact: Hvdroxide.