密封涂层用以封闭木材或钢材表面的微孔。空隙的涂料亦称封闭漆或密封底漆，是底漆的一种。
该轴承有一层密封涂层，可以阻挡95%的矿业尘埃粒子，以此来延长机器磨损寿命。
The bearings have a layer of seal coating, can stop the 95 per cent of mineral dust particles, which extend the machine wear life.
轴承：自润滑，密封在雨刮，黄蜂聚四氟乙烯涂层可建成。
Bearings: Self lubricating, built in wiper seals, Frelon teflon coated available.
铂丝缠绕电阻式温度探测器(RTD)采用非常精细的高纯度的铂线缠绕在陶瓷芯上，采用玻璃涂层密封。
Platinum wire wound Resistance Temperature Detectors (RTD) construction consists of very fine high purity Platinum wire wound onto a ceramic core and then hermetically sealed with a glassed coating.
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