1,fire-retardant, static-free PVC material 2,competitive price,fine quality ... ,Main color: yellow,red,orange .white,black,green ect.5,Character: enduring high temparature,acid,alkali,oleic acid, harmful liquid state ... welding, laboratory ,air-conditioner,engine room, the municipal conduct engineering,fire-fighting to ventilate or exhaust waste air,dust to supply ...