Major customers: most korean gear producers (heavy industires, automakers) , Japan, and Taiwan1. Material from erasteel (France) , 2. Manufactured with SMS CNC machine (Germany) and klingelnberg CNC machine (Germany) . 3. Engineered by 10 year (on average) experience korean engineers. 4. Tested by and klingelnberg gear, hobs, and shaper cutter tester. 5. Coated with balzers. 6. Conforming to din 3968.