... tube, pipe in round, square, oval, rectangle. FOR tube mill line/pipe machine/pipe making machine/tube machine/tube making machine ... tube mill/ERW tube mill lineTube Mill, Steel Pipe Production Line, Pipe Mill1. To make steel pipe O.D. from 0 ... Yangzhou Hengchang Machine Co., Ltd. is located in the Yangzhou China. It was specialized in producing rollers that go with different ...