concrete placing boom definition
concrete placing boom means a powered mobile truck-mounted plant incorporating a knuckle boom that is capable of power-operated slewing and luffing to place concrete by way of pumping through a pipeline attached to, or forming part of, the boom of the plant;
concrete placing boom means powered mobile truck-mounted equipment incorporating a knuckle boom that is capable of power-operated slewing and luffing to place concrete by way of pumping concrete through a pipeline attached to, or forming part of, the boom of the equipment;