Han-Kwang Opto Ltd, we are one of leading manufacturers high quality Lenses for Automotive, CCTV, medical & machine vision Camera having enjoyed fair reputation in Overseas and domestic market as well since 1976 Korea. Currently we're focusing on ...

Serious hands-on innovation. That's what G-Auto is all about. We deliver cutting-edge test, measurement and monitoring solutions to the top companies by bringing new technology market. Our strategy very simple. Focus on make a resounding impact. ...

QROTECH was established by our staffs who have crafts such as physical, chemistry, optical science, electricity and electronic in 1994. They been developing producing the precision measuring instrument with systematic research lots of experience them. ...