... is HT seriers planet extruder,such as HT140,HT170,HT190,HT200,HT220,HT240 and HT250. The screw rod are in long ... replaced with three imported major components. Planetary extruder is different with single-screw and double-screw extruder,there are more than 6 screws in ... extrusion side,it is in large capacity,and good ...