Crappie fish feed extruders for farm use in South Africa-Fishfeedextruders. large scale twin screw extruder machine carp south AfricaKY also offers a larger-scale HK twin screw extruder, with the commonly used screw diameters ranging from 110 mm to 165 mm. Email: lima37@limamachinery-LimaTel: 8619337889051.