1.manufacturer price 2.best quality 3.good service 4.quick ... respiratory tract, through mechanical irritation2.UsageIt is reinforcing filler for rubber soles with high reinforcing effect as that of carbon ... Medicine,food,Feed additives,Pesticides,Dry powder fire extinguishing agent, Paint .etc3.Packaging25kg/bags,double-layer bag (inner layer with ... -3.5 +/-1.3 Carbon black carbon black pigment for paint