... mostly in LCD membrane switches, sunglass PC film has anti-shock strength, heat steadily, luster, bacteriostasis, fire-retardant and ... membrane switches, nameplate, protection veil, sun helmet, sunglasses etc.The line can auto-treating the materials, such as auto-convey, auto ... three-roller machine is made of alloy steel. Considering the anti-deformed ability when it is pressed and heated, we design ...