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After the assembly, and the GNP-oriented 6 top presses T SPD 6 ×1200, high temperature and pressure at 30 min After treatment, quenching cold to room temperature, and the combined pressure and temperature is 3.5 GPa C approximately 1000 degrees.

After the assembly completes, six goes against the hydraulic press in the domestic product SPD6×1200T on, after the high temperature high pressure processes 30min, quenches the room temperature, the synthesis pressure is 3.5GPa, the temperature approximately for 1000℃.

Assembled upon completion on the domestic cubic hydraulic press SPD6x1200T, after high temperature high-pressure process 30min, quenched to room temperature synthetic pressure 3.5GPa, temperature is approximately 1000 ℃.

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