耐火层 meaning in English

flame retardant coating
refractory coating
refractory deposition

Cigarette tip and fire resistant high - density water and fire resistance
防烟蒂和火/耐火层高密度/表面水火不侵
Purposes : applying to various cables , spacer layer , non - flammable layer , fireproof layer and insulating layer , also applying to insulated tape for electric machine and electric appliance
用途：适用于各系列的电缆的间隔层、吸热层、耐火层、绝缘层、也适用于电机电器产品的绝缘带。