... temperature down to -402. Dust-proof structure3. Powder, granular and lump materials can all appliance4. Accuracy better ... 500m The Materials can be measured1. Powder (plastic raw materials, iron powder, sodium sulfate, cement, vitamins, cocoa, ... alumina, iron ore powder, blue copper, coal, carbon black, potassium cyanate, flour, etc.),2. Granular ...