First, tell the customer that the layer spacing can be adjusted. We generally use 30cm, but we support customization. The customer finally thinks that 30cm is enough. Then the shelf tells the customer that it is made of galvanized steel, and the light bar is IP68 waterproof level. This ppdf value is a problem, so After the communication, 2 light rods were added to the customer on each floor, and each light rod was changed from a single-row lamp to a double-row lamp. After the customer confirmed all the details of the product, the customer preferred to pay through credit insurance, so The customer has made a deal.