Weifang Changsheng Pipe Co., Ltd is a professional manufacturer of ductile iron grooved pipe fittings and couplings, whose annual production capacity more than 30,000 tons. The company covers an area 280,000 square meter located in High-tech Zone, Weifang, ...

Weifang wpt casting Co.,Ltd is a individually run enterprise with high technology ,which has the capabilities of manufacture, sales and customer service.Our business scope manufacture ductile cast iron pipes fittings composite metal plastic pipes.It ...

Weifang Zhihua Casting Co., Ltd was established in 2007, located Weifang, which is honored as world kite capital and near Qingdao International seaport. We are one of the leading manufacturer enterprises grooved pipe fittings couplings China. it widely used ...