A professional who assembles refractory stoppers used to plug pouring nozzles of steel ladles. Respnsibilities include:

• Mixes specified amount of refractory mortar powder with water, using trowel or hoe.
• Fastens stopper head to rod with metal pin.
• Spreads mortar on rod, using trowel, and slides brick sleeves over rod to form refractory jacket.
• Tightens locknuts holding assembly together, using wrench.
• Spreads mortar on jacket to seal sleeve joints.
• Hoists stopper and rod assembly on drying rack and pushes rack in oven to dry mortar.
• Pulls rack from oven and pushes it to storage area.