Steel - rebars, billets, iron ore, portland cement, lime (quick and hydrated), plaster(of paris), granule slag, marble, sheet and coil, roof tile and bricks, minerals like potassium feldspar, quartz mineral, sodium feldspar, talc mineral, calcite, dolomite, acidic ramming mass, mica flakes, mica powder, limestone, marble, red oxide, ocma grade bentonite, kaolin powder, magnesium oxide..