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

2毫米模组, 2mm Die Set for KBr Quick Press Kit

磁化率平衡器, Magnetic Susceptibility Balance

USA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, Al-23 Tube

Al-23绝缘管, Al-23 Insulating Tube

Al-23坩埚, Al-23 Crucible

Al-23坩埚, Al-23 Crucible