Bitumen performance grade PG70-16 PG70-10 PG64-16 PG64-22 PG58-34

What is bitumen PG grade (bitumen performance grade) Bitumen PG grade PG70-16 PG70-10 PG64-16 PG64-22 and PG58-34 is performance grade of bitumen which is replaced to all other old style grade of bitumen to work easily on high temperature and resist to break in low temperature.This grades is American standard and after road authority recognized …

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