... capacity is below 20m3 we will take Superposition weighing way, one weighing equipment for aggregate ( sand, stones), cement and powder will ... take the way of independent measurement, all the weighing equipment will take the electronic scale micro computer control. Weighing ... ±2%. Cement, powder, additives the precision is ≤1%. The equipment can be widely used for: JS500,JS750,JS1000,JS1500 ,JS2000 ...