... and 3PE anticorrosive Steel pipe coating.Min Pipe Dia. Φ79mm (3 1/4"),Max Pipe Dia. Φ2540mm (100"),Max processing capacity ... transfer system, Surface treatment system, Steel pipe dust extraction system, Steel pipe heating system, electrostatic painting system, Coating system, Water cooling system, Cutting system, Hydraulic pressure & pneumatic system, Testing system and ...