钙离子, Calcium

钾离子, Potassium

光学助熔剂106, Spectroflux 106

仪表校正(ICAL)标准溶液, Instrument Calibration(ICAL) Standard

土地和废水污染标准溶液3, Ground & Waste Water Pollution Standard Solution 3

氯化钠晶体光学长方体块, Sodium chloride crystal optic rectangle

氟化钙晶体光学盘, Calcium fluoride crystal optic disc

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

氟化钙晶体光学长方体, Calcium fluoride crystal optic rectangle

光学矩形氯化钠晶体, Sodium chloride crystal optic rectangle