Shenzhen, Guangdong, China,
Shenzhen Yilong optical Industrial LTD wasfounded in 2015,is a high-tech enterprise, specialized R&D,OEM manufacture and sales of area, which are widely applyto fiber optic communication,watch,electron Microwave,semiconductor, medical industry, ...
telescope, red dot series, side-parallax adjustment, adjustable objective riflescope, fixed-power riflescope, short riflescope