薄层层析氧化铝板(不含荧光)，中性氧化铝, 75*25 mm, 涂层厚度：0.2±0.02 mm, 氧化铝粉粒径：≥400目, 80片/盒

TLC aluminum oxide plates (fluorescent indicator: no), Neutral, 75*25 mm, layer thickness: 0.2±0.02 mm, particle size: ≥400 mesh