... The Qianhe Steel and Trade Co.ltd located in Cangzhou,Hebei provnince,China.The Qianhe Steel and Trade Co.,Ltd is one of the best ... manufacturers in China. And the Qianhe steel and Trade Co.,Ltd supply all kinds of straight welding pipes and seamless steel ... subsidiary company of the biggest steel pipe manufactures HeBei XinZhongLian Special Steel Tube Co.,Ltd. At present, with an area of 119,000 ...