low-grade firebrick
1iron processing — Introduction use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a… …
2Oughtibridge — Coordinates: 53°26′10″N 1°32′20″W / 53.436°N 1.539°W / 53.436; 1.539 …
3Wood fuel — is wood used as fuel. The burning of wood is currently the largest use of energy derived from a solid fuel biomass. Wood fuel can be used for cooking and heating, and occasionally for fueling steam engines and steam turbines that generate… …