Zhang Hua Technology's bi-conical rotary vacuum drying units have passed the U.S. FDA inspection and meet GMP production standards. This has created favorable conditions for China's export earnings and international market penetration. To further adapt to the needs of the pharmaceutical industry, we have developed "three-in-one" equipment for filtration, washing, and drying, "two-in-one" equipment for filtration and washing, and a 2m3 trough-shaped vacuum drying unit.