... ,screens,bottles,gravels,stones,sand,metal parts,steel plates,machines,etc.Spraying:Photo-etchants,oils,lubricants,liquids, ... Fire protection,heat protection,dust suppression,etc.Metal makeCeramic orifice insertedStructure3-piece structure of metal make; Comprises three parts ... injection molded spray tip by molding precision-made ceramic orifice into plastic retainer.MaterialB( Brass) and S303(Stainless ...