... Four, coating methods: brush, roller coating, air spray, high pressure without gas spraying all can1 and nozzle ... ) high pressure gas spray nozzle diameter is 0.4 0.5 mm; (2) the nozzle diameter: 2.0-Omm2, gushing ... high pressure without gas spraying: 20-30 MPa; (2) air spray: 0.2 0.4 MPa.3, thinner: 102 special thinner4 ... processing, to Sweden Sa2.5 level standard rust. 2, such as no oxide skin, can is ...