TIANJIN RONGXIN STEEL CO.,LTD. , a wholly owned subsidiary of TIANJIN TAIYIXIN STEEL TUBE GROUP, has been developed to be one of leading manufacturers in the field of steel pipe , including ERW Steel Pipe(DN15-DN250), Galvani...
Shandong Ductile Iron Pipes Co., Ltd. is the largest subsidiary company of Jinan Iron & Steel Group Corporation (JISG). Shandong Ductile Iron Pipes produces both pig iron and ductile iron pipes. Through the constant developme...