Body section In body section sand blasting process, metal abrasives’ quality directly affect the quality of coating, the efficiency of the sand blasting, the paint, the kinetic energy and the consumption of the abrasive materials etc. factors regarding to the quality and comprehensiveness cost, Along with the new Protection Performance Standard of Coating(PSPC), it sets a higher request on partition sand blasting quality, therefore, the metal abrasives’ quality is more important in the process.