high quality open mixing mill 1'Two rollers are made from Chilled Cast Iron 2'Main bearings:bearing or Nylon bush Instruction We 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 kinds of rubber machineries. The products have been exported to many countries ...