... -conditioning device2. index:size: Φ355mmstructure: Consisting of inner rubber coated fabric ply, insulation ply, ... resource.2). In the course of storage, transport and service, prevent the hose contact with ... and service conditions, the term of hose storage is two years, ant the guaranteed term of service is ... cracks or is damaged, and is out of service. b. There is serious blockage and leakage ...