... left corner. 2, clear the electrical, electronics and precision machine tools on the metal powder, debris, dust and so on. 3 ... to the bottom of the material. 7, installed in the auto-action system. 8, transport, collection, transportation objects. 9, spray ... , wheat processing plants, cosmetics, wood factories and chemical plants. 12, auto repair shop, clean store. 13, the plastic bag into the vacuum ...