This product is all pickling, phosphating, polishing, painting, heat treatment, and acceptance by professionals binding package, size and color can be the buyers chosen at random to ensure that the appearance of non-defective, full qualified, this product accessories packing of bags attached to the bed body, install according to instructions to install, user-friendly style can also be required to change, welcome to OEM the product lifetime warranty, 10-year package to use, we will provide quality service, low prices, welcomed the new and old customers to negotiate business.