20-160MM PPR 1/2/3 Layers Pipe Making Machine The PPR pipe production line produced by our company has unique structure, high degree of automation, convenient operation and its continuous production is also stable and reliable. And the advantages of the PPR pipe products produced by the plastic pipe production line are of good heat resistance, pressure resistance, heat preservation and efficient, and its usage is also economic and has long life. This PPR pipe products has become the preferred material of water pipe renovation of home decoration. Plastic extrusion machine process flow Raw material + additive…