Stopper for reliable gas injection
Stopper rod
Stopper rod
Stopper rod
Stopper rod spatial control mechanism
Stopper rod with an improved gas distribution
Stopper support mechanism for casting containers
Stopper throttling system
Structure for forming a refractory joint of predetermined thickn
Submerged entry nozzle
Submerged nozzle for slab continuous casting moulds
Submerged nozzle for the continuous casting of thin slabs
Surface pressure load device of slide valve
Systems for flow control in electroslag refining process