... materials2.It is reliable, low prices3.Has been widely used in food, chemicals, building materials, metallurgy, electric power ... , belt feeder, vibrating feeder and the rotary valve used in conjunction. Systems for a variety of ingredients. Features1 ... measured1. Powder (plastic raw materials, iron powder, sodium sulfate, cement, vitamins, cocoa, alumina, iron ore powder, blue copper, coal, carbon ...