“三明治”飞机天线垫片是由于垫片中间夹有氟硅材料的两片可压延长的铝丝网组成而得名。它可在增压或非增压区域平面和凹面安装，而不需要专门的油膏、防腐剂或别的密封剂，防止了天线和蒙皮之间、仪器和蒙皮之间以及连接螺钉的腐蚀。 The “sandwich” aircraft antenna washer was named after a two-piece extendable aluminum mesh with fluorosilicone material in the middle of the washer. It can be mounted on both flat and concave surfaces in supercharged or non-pressurized areas without the need for special greases, preservatives or other sealants to prevent interference between the antenna and the skin, between the instrument and the skin, and between the screws corrosion.