Search results for: "bituminous"

BitumenBitumen is a non-crystalline solid or viscous material derived from petroleum, by natural or refinery process.Bitumen is brown……

Posted on 09 September at 08:45

Coal is a blackish, complex mixture of compounds of carbon, hydrogen and oxygen. It also consist small amounts of nitrogen and sulphur……

Posted on 17 July at 10:35

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