oxidized bitumen origin of iran 115/15 Gilsonite, that`s also name uintahite, asphaltum or asphaltite, is a naturally occurring solid hydrocarbon, a form of as
oxidized bitumen origin of iran 150/5 Gilsonite, that`s also name uintahite, asphaltum or asphaltite, is a naturally occurring solid hydrocarbon, a form of as
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