... for four pipe mould(contain 16,20,25mm core rod, Die, sizing sleeve) 32mm mould ( ... it is additionally applied with length measuring meter and thickness increasing device, the property of machine ... inner wall spiral pipe, inner wall hollow pipe, and core layer bulpo pipe, etc, it can also produce ... PP, PE, ABS, & PPR, PEX, silicon core pipe and pipe material of other material. The planet-shaped ...