Stopper for a tap hole of a steel converter and method of operat
Stopper for use in molten metal handling
Stopper means in pouring furnaces
Stopper rod
Swivel device with cantilever arm
Tap hole plugging device
Tap-hole closing arrangement
Tap-hole closing arrangement of a metallurgical vessel
Taphole boring or plugging machine for shaft furnaces, especiall
Taphole plugging apparatus for a shaft furnace
Taphole sealing apparatus
Three-positions sliding gate valve