High concentration × Required Skills: Grinder and Polishing Machine Operation
2 jobs found.
Shell Core Finisher
Manufacturing technician who removes burrs and drills holes in shell cores (resin-coated sand cores), performs grinding and polishing, and precisely finishes core shapes for casting.
Straight Ruler Maker
Artisan who uses metal or resin as materials and manufactures high-precision straight rulers (straightedge rulers) through processes such as cutting, grinding, and calibration.