Raw material + master batches → mixing → vacuum feeding → material dryness → single screw extruder → single screw extruder → single screw extruder → color string extruder → spiral co-extrusion mould  → calibrator → spray vacuum calibration tank → spray cooling water tank → spray-code printer → belt haul-off → no-dust cutter → pipe rack → finished product inspecting & packing

Model	Screw diameter	L/D	Extuder Qty.	Pipe range	Capacity	Main motor power	Total power	line length
FP-PPR-63	50mm	30：1	3	20-63	100-150	22×3	100	30
FR-PPR-110	65mm	30：1	3	75-110	180-280	37×3	150	38