... LtdA, Equipment specifications and technical parameter1, Single screw extruder(totally 3 sets)SJ-120/30 1.1screwa, diameter 120b, L/D ratio ... Machine cana, Aperture 120b, material 38CrMoALA slack quench. Nitrogen treatment1.3 It is water-cooling that machine can feed part forces ... structural type Three-layer spiral nose2.2,Mould diameter 1450mm2.3,Mould gap 2 mm3, air ring part(quantity and modelSFK1450 ...