1. Material inspection
The materials used in the product shall not cause pollution to the water quality, and materials prone to corrosion are not allowed to be used. The product is subjected to 90 hot water for no more than 1min, and the smell of the water does not change
2. Appearance quality inspection
1) there shall be no shrinkage holes, sand holes, cracks, pores and other defects on the outer surface of the copper casting, and no mold sand shall be adhered to in the inner cavity.
2) the outer surface of plastic parts should not have obvious ripple, scratch, modification damage and other defects.
3) all the surfaces that can be touched by the human body in use should not have sharp edges and corners and other hidden dangers that may cause harm to the human body.
4) after installation, there shall be no place not to be plated on the surface of the electroplating appearance. The surface shall be bright and uniform, and no peeling, peeling, bubbles and other phenomena are allowed.
3. Inspection of marking, packaging, transportation, etc
1) there shall be a permanent mark of a registered trademark on the product.
2) the individual package of the product shall be marked with the name of the manufacturer, the product name, the product model, the registered trademark, the number of the execution standard, the date of production, etc. (except for the special requirements of the customer).
3) the product shall be accompanied by the factory inspection certificate and installation and operation manual.
4) each set of products shall be packaged separately to ensure that there is no destructive collision between the parts of the products.
5) the product should be protected from rain, dampness and knock during transportation, and should be handled when checked.
6) the product shall be stored in a well ventilated and dry room and shall not be stored with acid, alkali or corrosive articles.