Detailed Product Description This is a Cone-type Piercer for Tianjin Steel Pipe Co., Ltd provided ... by rack driving, plug auto-quick change, guide shoe online change, which has reached international advanced level with large capacity ... and left-right guide shoe arrangement, the vertical cone-type piercer has the following characters:1. In No.2 ... .2009, TZCE has produced 28 sets of Cone-type Piercers.