石英砂 (粒径 0.3-0.9mm) 2.5kg B-411, E-416, E-914/916用
高度に精製され、特定の粒径を持つ
This quartz sand is highly purified with the specific particle size of 0.3 - 0.9 mm used for sample preparation.
This quartz sand is highly purified with the specific particle size of 0.3 - 0.9 mm used for sample preparation.