... be 90m at most. 2.The trolley body is made of SUS304 stainless steel Trolley Air Respirator (SCBA), underground firefighting ... equipmentProduct description Constitution: 4*6.8L carbon fibre cylinderStainless steel trolley, carbon fiber cylinder,air supply pipe, Reducer, air supply ... Long Tube Breathing ApparatusAccessory CombinationWheeled Barrow:Workshop Overview Trolley Air Respirator (SCBA)