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

一次性红外光谱片, Disposable IR cards

大容量管, Large Sample Tubes

美国标准筛, USA Standard Sieve

美国标准分子筛, USA Standard Sieve

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

Al-23绝缘管 两端开口(薄壁);外径 (mm), Al-23 Insulating Tube

Al-23鱼脊状珠;外径 (mm), Al-23 Fish Spine Beads;OD (mm)

Al-24坩埚, Al-24 Crucible