... and our own experience 2.ISO9001&ISO14001 WBSY300 self-loading mixing plantThe machine mainly used in construction of ... system ingredients: aggregate storage ,discharge conveyor.2.Powder supply system: powder storage ,screw conveyor ,φ219 spiral feeding.3.Water ... reducer ,twin-shaft mixer.5.Material storage equipment: trough belt conveyor, product warehouse ,cylinder ,triple parts ,solenoid valve ,air ...