China Zhonghai Steel Pipe Manufacturing Corporation established in 1997.Our co***ny has more than 1000 employees,the area is 135000 square meters. Owning 6 large standard workshop,we possess 9 sets including the spiral steel pipe machine,Two sets 180mm seamless puncher for hot-rolled,as well as the hot- sinking mill equipment. China Zhonghai Steel Pipe Manufacturing Co, .Ltd is a professional manufacturers specializing in producing: 1. Seamless steel pipe 2. Welded steel pipe Our co***ny ma...
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