China National Building Material Group Co., Ltd. (CNBM) was founded through the merger of the China National Building Materials Group Corporation and China National Materials Group Corporation.

Dinggin Hardware (Dalian) Co., Ltd. Was founded in 2011, in northeast of China. We mainly supply the cast iron and stainless steel products.

Shandong Weifang Import and Export Co., Ltd. is a professional foreign trade company which was founded in 1992 and we have twenty three business departments with more than 110 staff at present. Our main products include machinery and hardware, chemicals, garments and foods. During the past years, we establish business relation with more than forty counties all over the world and annual turnover reached 80 million US dollars in 2012.

Shijiazhuang Shunjinguangao Trade Co., Ltd was founded in August 2010. Now our company mainly produce the EN877 and ASTM A888 standard, also stainless steel couplings, we also produce the cast iron parts, like cookware, counter weight and other ductile parts, we now have centrifugal casting line, DISA casting line and manual sand foundry.

Guantong Pipes Co., Ltd., located in the Luxi New Century Industrial Park, Guan county, Shandong province.

We, Shijiazhuang Woliu Trading Co., Ltd. is a company integrating both manufacturing and trade. We have been exporting Iron pipe and fittings, cast iron ornament, and auto engine parts for many years with rich experience. We have fully-owned two factories: Shijiazhuang Asia Casting Co., Ltd and Hebei Jiayuan Auto Parts Co., Ltd.: Shijiazhuang Asia Casting Co., Ltd mainly produce cast iron pipe and fittings, which conform to GB12772, ISO6594, DIN19522/EN877, ASTM A888, CISPI301, etc. With yearly output over 10000metric tons. Quality products have been exported to Europe, America, Canada, South Korea and Africa. With experienced employees and complete quality inspection system, our superior quality and stable supply have won us great reputation in from abroad markets. Hebei Jiayuan Autos Parts Co., Ltd. Professionally manufacture engine cylinder block and head. With years of development, we have dozens of product models for Japanese, Korean, European and American engines.

Weifang Xinli Import and Export Co., Ltd. Was established in 1998. It is specialized in exporting cast iron products, cast steel product and forging products. We have more than 20 year′ S experiences in foreign trade especially in the pipe fittings, adaptor and valves. Which are widely used in water supply and sewerage system.

Shanxi Jintai Hongye Casting & Forging & Machinery Co., Ltd. is committed to the production of gray iron, ductile iron and other products. It is one of the professional manufacturers of manhole covers and pipe products in China. It is located in Shanxi Province, a major industrial province in China, and has abundant pig iron, coke, steel and other industrial raw material resources. As a professional manufacturer and supplier, we have 25 years of casting experience and history, and always adhere to the principles of continuous innovation and creating value for customers to meet customers' demands for high quality and technological excellence in municipal road manhole covers, engineering parts, pipes and other Accessories requirements. After years of development, we have accumulated rich industry experience and built a professional, high-quality team. Focus on product design, quality control and customer service. We strictly follow the quality management system.