1 Nirjharâs interest is to know different technology and process engineering. 2  Raw iron is found in earthâs crust, as an ore. 3  Iron ore mostly found as Fe 2 O 3 (the form of iron oxide found as the mineral hematite). 4  At present, blast furnace is most commonly used furnace to produce iron.
The weight of a railroad tie depends on their size and specifications. They can range anywhere from 100 to 300 pounds.
Usually a cotton or hay bale, which was cotton or hay compacted into a rectangular cross section bundle and held together by wire (baling wire for hay) or steel bands (for cotton). A cotton bale typically weighed about 500 pounds and a hay bale about sixty-six pounds.