May day holiday notice : We will have the May day holidays from May. 01 to May 05, will back to work on May 06, 2026.
Grade
Appearance
Moisture
MP/(℃,≥)
Content/(%,≥)
Residue/(%,≤)
Alcohol-insoluble /(%,≤)
Super
White Powdered Crystals
Qualified
174
96
0.05
0.01
Grade 1
170
95
Grade 2
165
94
0.1
0.015