The packing installed in the pump stuffing box is lubricated by ().
Air leakage between the shaft and stuffing box packing in a centrifugal pump is prevented by ().
Air leakage between the shaft and stuffing box packing in a centrifugal pump is prevented by ().
Each piston stuffing box is provided with two sealing rings and three()
Each piston stuffing box is provided with two sealing rings and three()
The packing installed in the pump stuffing box is lubricated by ().
byte stuffing字节充填