35 years of professional military usage optical coating experience Beijing Jinji Aomeng Co., Ltd. has a strong technical group and over in coating. There are also advanced automatically operated machine, high performance spectra-photometers design ...

WON CHANG ENTEC is venture company for environment and compound materials established in March, 1991.We continuously make an effort technical development pursue green products to over clean our offsprings.We will do best be a reliable through R&D ...