... produciton efficency, low running cost patented technology of subtraction weighing batching system (Patent No.200920088246.3),with high precision, compact design ... 50 to 240 cubic meters of high quality ready-mixed concrete. The main types of plant HZS50K, HZS75K,HZS60A, HZS90A/B ... plants to meet the special demands of clients. ready-mixed concrete batching plant (environment friendly)