1,PP-R pipe production line 2,pipe diameter:20-63mm 3,Speed upto 16m/min 4,Also can produce ... inside wall, and a litte internal stress.producing pipe limit 20-63mm, manufacture velocity upto 16m/minmay be used to produce ... and PEX pipesMain tech Parameters:model:SJ65/30-33pipe diameter:20-63mmscrew diameter:65mmscrew ribbon width:30:1 33:1output:120kg ...