... impeller injection, rapid removal of heat rigid plastic, bakelite, resin products, such as surface, hole, recess of the flash and ... 0.8mm, 1.0mm; uniform size, used in plastics, bakelite products, flash, burrs, automated batch processing front. Sand in the use ... to eliminate the static electricity generated; the treatment, the products do not stick to dust, clean and bright standard results. Allows the ...