Rubber insulation material fire it?
B1 grade is flame retardant material, B2 grade is combustible material. Must be required random sampling, to reach the oxygen index 40 have the opportunity to fire. A music torn, Owen and Fu Rui Ge can
There are fire, but up to B1 level, more than half of ordinary.
Fire (he is only flame retardant and not non-flammable) B1 and B2 level Ji Ji rush to kill the ghosts only Han Li is not the flame retardant coefficient of low smoke density of a standard is not a standard in a density (density related to the effect of insulation ) Sure that you have fire against you
