溴化钾晶体光学盘, Potassium bromide crystal optic disc

氯化银晶体光学片, Silver chloride crystal optic disc

氯化钠晶体光学盘, Sodium chloride crystal optic disc

溴化钾晶体光学长方体块, Potassium bromide crystal optic rectangle

晶体抛光组件, Crystal Polishing Kit

玛瑙研钵和棒, Agate Mortar and Pestle

球杵; 清树脂玻璃; 3/8 直径meter, Ball pestle; clear plexiglas; 3/8" diameter

大容量管, Large Sample Tubes

美国标准分子筛, USA Standard Sieve

美国标准筛网, USA Standard Sieve