1.easy to control 2.high efficency 3.environment friendly 4.economical description of FX ... gray casting if there is no special explanation. 3. Optional polyurethane, steel shell lining polyurethane, abrasive rubber, KM composite material, ... 252555,6,7,82,3,4,550.20.1-0.50.3-0.13-101601525870.830.3-0.12-101201105761.4FX ... -101022,3,41240.10.1-0. ...