Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for Binocular shutters, Infrared filter switch, Shutters hold gun recoil, IR cuts,Shutter for uncooled IR camera. As an expert specialized in this field, we are committed to solving any problem of high temperature protection for users. The product will supply to all over the world, such as Europe, America, Australia,France, USA,Johor, Puerto Rico.Our solutions are widely recognized and trusted by users and can meet continuously changing of economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!