The gears of austempered ductile iron (ADI) and the gear profile modification technique can effectively reduce transmitting gear's noise.

Apply to flat class, dishes, profiles and other alien workpiece of sandblasting processing, such as glass, stone, bakelite, aluminum alloy, stainless steel, iron plate, extruded aluminum profile.

The object of study in this article is the profile products of large domestic state-owned iron and steel enterprise - PG Company.