steam piston-rod stuffing box bushing的意思|示意

美 / / 英 / /

蒸汽活塞杆填料箱衬套

蒸汽活塞杆填料函衬套蒸汽活塞杆锁紧螺母 steam piston-rod jam nut 蒸汽活塞杆填料函衬套 steam piston-rod stuffing box bushing 蒸汽活塞杆填料函压盖 steam piston-rod stuffing box gland ..