Ultrasonic Tested Wire Rope Drum for Internal Defect Detection Product Description Our Ultrasonic Tested Wire Rope Drum for Internal Defect Detection is engineered to deliver superior reliability and safety for overhead cranes, gantry cranes, electric wire rope hoists, winches, and other heavy-duty lifting equipment. Every drum is manufactured from premium-quality steel and undergoes precision CNC machining to ensure accurate dimensions, smooth rope grooves, and excellent