... of materials (second grade concrete) such as sand, stone, cement according to users' requirement. 2>These serial products adopt electronic weighing ... operation, and have advantages such as accurate weighing, high precision batching, quick speed, strong ... precision: ±2%Categories of aggregate:3-4Height of feeding: 3000mmMotor power : 13kwWeight :4220kgWay of weighing electronic scaleDimension :9100* ...