Post Time2018-12-30 06:41:29UTC
Trade Leads Details
Penetration Grade Bitumen, is classified by influence trait. This grading’s basic assumption is that less viscous asphalt, deeper the needle will penetrate. Bitumen which is made during oxidation process of vacuum bottom. Bitumen production feed-stock that derives from distillation tower residue in vacuum oil refineries. At bitumen production unit in a manner that its penetration point.
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