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

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

溴化钾小压片, KBr little pellet press

一次性红外光谱片, Disposable IR cards

超细孔样品管, Ultra thin-bore sample tubes

USA标准分子筛, USA Standard Sieve

美国标准分子筛, USA Standard Sieve

美国标准分子筛, USA Standard Sieve

Al-23管(一端封口);外径 (mm), Al-23 Tube (one end closed);OD (mm)

Al-23管(两端开口);外径 (mm), Al-23 Tube (both ends open);OD (mm)