... Metal Tubing Used in Automatic control equipment, Cable Protection System Size: 1/4"-4" IP68, PVCcoat Conduits, ... it easy to threading.Protection levels : IP68Color: Black & GreyApplication: Railway, vehicle, traffic system project, air-condition ... . Petroleum, chemical industry, Transmission and distribution system, communication system.Certificates: CE, RoHS.Product detail: ItemSizeStructureI.DO ...