... retardant, heat insulation, high voltage resistant, oil resistant, The protective boots of fire fighting in line with the GA6-2004 "fire ... of fire-fighting and anti-hit performance of the protective boots are both ≥ 15mm, anti-punctured performance ≥ 1100N,the surface of ... voltage ≥ 5000V, leakage current <3Ma,the inner soles of the boots is of the temperature no more than 22 , and the ...