For the design project in 2021, the customer asked to design a DPL laser skin moisturizing instrument product at that time. In the early stage, he communicated with the customer in terms of design style direction, material technology, cost, etc. The customer required that the overall appearance difference and brand identification should be certain with similar products on the market. The placement position of the handle should not be the same as that on the market, because most similar products on the market are single-handle or double-handle machines, the positions of the handles are on both sides of the equipment, or the wires are on both sides of the supports. At that time, a handle was just placed in the middle of the front in the market, and the customer said it could be used for reference. In addition, compared with the existing product materials on the market, the customer finally chose sheet metal materials.