The novel proportion is compared with the past in this category. Compressor equipment used to hardly need appearance design. The previous equipment was a large piece of "bloated and powerful", so we made "small" and mellow according to customer needs. There is no sense of the square of the equipment. There is no screw on the surface because it is produced by the injection molding process, in the form of a buckle. Only the combination on the side metal parts has screws. The appearance of screw holes is not integral enough in our concept, which will destroy a certain aesthetic feeling, unless it is because of cost? or production necessity, otherwise screw holes will not appear. Even to a certain extent, because of the publicity, we will also dispose of the screw holes for some products. This compressor has been mass produced and can be seen offline