Supply of 300U optical plastic optical adhesive (0.03mm), the thickness of 300um (μm) the OCA optical transparent plastic is a kind of optical acrylic plastic made without the substrate, and then up and down the bottom, and then laminating a layer away from the type film, is a substrate material sided laminating adhesive tape. OCA optical plastic products are widely used in the bonding of the transparent film and the capacitive touch screen devices, can be used for the bonding of the electron optics of the projection screen assembly, display assembly, lens assembly.