Roller ,Mining Feeder 1. Material: alloy steel, cast iron, cast steel 2. Lost wax casting or sand casting Customized designs and specifications are available.Features:1. Material: alloy steel, , cast iron, cast steel2. Lost wax casting and sand casting3. Machining: CNC turning, CNC milling, CNC drilling, CNC boring4. Weight: 0.2-60kg5. Surface treatment: sand blasting, electrophoresis, powder ...