Hong Kong Regulations

FACTORIES AND INDUSTRIAL UNDERTAKINGS (BLASTING BY ABRASIVES) SPECIAL REGULATIONS - REGULATION 2

Interpretation

In these regulations "blasting process" (噴砂工序) means the cleaning,
smoothing, roughening or removing of part of the surface of any substance or
thing including granite, stone or brick by the use as an abrasive of a jet of
sand, metal shot or grit or other material propelled by a blast of compressed
air or steam or water or by a wheel.

"blasting process" (噴砂工序)