Numerical & Quantitative Analysis × Keywords: Mask

3 matching jobs found.

Optical Glass Engraving Worker

Specialized technical job that precisely engraves letters or patterns on optical glass parts and performs subsequent polishing and inspection.

Spray Waterproofing Worker

Specialized profession that uses spray machines to form waterproof membranes on building rooftops and exterior walls to prevent rainwater intrusion.

Etching Engraver

Specialized technician who uses chemicals to corrode metal plates and similar materials to form patterns or letters. Performs the entire process from mask printing to corrosion, washing, and finishing.