piston rod stuffing box 活塞杆填料函 ; 活塞杆填密函

piston rod stuffing box gland 活塞杆填料函压盖

piston rod stuffing box cup 活塞联杆填料函盖

liquid piston-rod stuffing box 泵缸活塞杆填料函

piston-rod stuffing box bushing 活塞杆填料函衬套

liquid piston-rod stuffing box gland 泵缸活塞杆填料函压盖

liquid piston-rod stuffing box bushing 泵缸活塞杆填料函衬套

steam piston-rod stuffing box gland 蒸汽活塞杆填料函压盖

steam piston-rod stuffing box bushing 蒸汽活塞杆填料函衬套