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

USA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, Al-23 Insulating Tube

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