SY-IMEXT is one of the first companies to supply Mechanical Infrared Thermal Imaging Shutters in China, Its 10years experience in rotary actuation filed enables to provide not just a single solenoid shutter, but also to offer unique optical shutter units with various benifits.So far, SY-IMEXT supplies with more than 1000 different optical shutter according to the size, shape, angle, characteristics etc, and besides the standard products, SY-IMEXT also works with client to develop new products and supplies with ODM/OEM solution according to specific requirements.