closing of taphole

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bott stick — noun also bod stick Etymology: bott (II) : a rod about 10 feet long on the end of which a bott is placed when closing a taphole … Useful english dictionary
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
mud gun — noun : a device for forcibly applying stiff mud or clay (as to the taphole of a blast furnace for closing it) … Useful english dictionary

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