3PE Pipe manufacturing plant, complete coating line for steel pipe, 3PE steel pipe anticorrosive equipment, diameter 630- ... PE Steel Pipe Anticorrosice EquipmentComplete coating line for steel pipe, 3PE anti-corrosion layers, suitable for diameter scope Φ159-Φ1220.3PE Anti ... φ159-φ1220.2PE Anti-corrosionAnti-corrosion structure of 2PE layer for the pipeline, the first layer is viscose adhesive (AD), ...