符合25/50可燃性和发烟等级要求的规定，经过美国试验材料学会E 84方法检测。
Hoses meet 25/50 flammability and smoke development classification requirements of codes and specifications when tested by ASTM E 84 method.
符合25/50可燃性和发烟等级要求的规定，经过美国试验材料学会E 84方法检测。
Hoses meet 25/50 flammability and smoke development classification requirements of codes and specifications when tested by ASTM E 84 method.
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