Structural features: Rotary pipe joints of this type are designed mainly for the water, air, hydraulic oil system. It possesses various advantages like small size, light weight, low friction torque and balanced sealing structure. Rotary pipe joint cover almost every manufacturing industry. Such as: metallurgy, machine tool, The power, Oil,Rubber plastics,Spinning,Printing, Pharmaceutical, Cigarette, Paper, Food,Feed processing.