firstname.lastname@example.org In recent years, with the rapid development of the domestic hardware industry and the increasing demand for hardware production in foreign countries, as the auxiliary and supporting projects for the production of the main engine - the spray molding industry has also ushered in new development opport
Method 1 of Metal Surface Treatment: Surface treatment before painting In order to remove the various objects (such as oil stains, rust, dust, old paint film, etc.) that attached to the surface of the workpiece, provide a good substrate for coating requirements, ensure the coating film has good corrosion resistance, decorative properties and some special features.
The metal surface painting process is an important metal corrosion protection method. The good paint coating protection layer is continuous and intact, and the combination is good, which can become a barrier to inhibit the intrusion of corrosive media. However, since corrosion is an irreversible spo