... are QINGDAO Jinrunqi Rubber Machinery CO.,LTD. Our main products are: various types of rubber mixer, rubber crusher, plate vulcanizer, rubber cutter, rubber extruder, rubber refiner and other ... -200Screw dia(mm)6585115150200L-Dratio454.84.44.4Screw rotational speed (r/min)20,27,35,4727,40,53,8020,33,46 ...