... thermalcouple temperature, liquid steel continous temperature, various industrial furnace(containing vacuum furnace, carburizing furnace, wire furnace, atmosphere furnace etc), especially widely used in petrochemical, spinning ... boreTwin poreOD11.523456811.623Bore0.50.61223450.20.30.50.7L10~1600 ShapeTwin boreFour boreOD4568121.62.534681012Bore11.21.5240.350.50.50 ...