... Name of product: ventilation hose for ground-air conditioners in airport2. Usage: To transmit cold or hot air ... and use of the hose1). Store the hose in the storehouse which is dry, ventilated and away ... from heat resource.2). In the course of storage, transport and service, prevent ... c. Strong acids and alkaline. 3). Do not step onto or press the hose with heavy objects, prevent ...