光学助熔剂100B, Spectroflux 100B

仪表校正(ICAL)标准试剂盒, Instrument Calibration(ICAL) Standards Kit

土地和废水污染标准溶液2, Ground & Waste Water Pollution Standard Solution 2

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 disk

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

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

一次性红外光谱片, Disposable IR cards

超细孔样品管, Ultra thin-bore sample tubes