... abstracted from the residual oil which the boiling point above 450aa. Its boiling point is high, belongs Microcrystalline WaxIntroductionMicrocrystalline wax is ... from the residual oil which the boiling point above 450°C. Its boiling point is high, belongs to amorphous or ... ) ItemsSpecification IndexTest Method70#75#80#85#90#Drop Melting Point °C≥ < 67727277778282878792 GB/T 8026Penetration, 1/10mm35 ...