Answers

2016-03-09T07:17:22+05:30
Soft ,rubbery ,glass ,film lubricants, metallic glasses, polymers , gels, film solar cells, rubber.
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2016-03-09T11:29:15+05:30
Coal,coke,wood,charcoal,animal charcoal,lamp black,gas carbon,petroleum coke,sugar charcoal,soot
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