... .2.PVC Thickness:0.3mm-0.45mm.3,Diameter:4" to 60" stander length:5m or 10m4,Main color: yellow,red ... .5,Character: enduring high temparature,acid,alkali,oleic acid, harmful liquid state gas ect.Temperature range:from -15°C upto +80°C ... room, the municipal conduct engineering,fire-fighting to ventilate or exhaust waste air,dust to supply fresh air.keep more savely and ...