The plaster machine allows uninterrupted processing of works, mainly the removal of oxidation skin from the surface of the work and the rusty impurities of the sand, and the plaster machine differs from other types of pellets. In this article, it is recommended that reference be made to the workings of the troupe projector, the large video of the workings of the troupe projector, the passer projector site of hebei clientsFirst of all, the equipme