·The one-piece beam is usually cut at a 45-degree angle, and no adapters are required. The professional cutting machine is often used in the factory to cut the hair logistics. Because the hair logistics can only be cut after measuring the size, the cost is high.
·The composite beam requires adapters, which is convenient for stocking, and can be cut on site at any time. The logistics cost is low, and the waiting time is short because it can be stocked. Since the adapter can be used to cut flat, the total height of the composite beam is usually 15.5-28 cm high. The installation effect is better than the one-piece beam.