一次性红外光谱片, Disposable IR cards

样品管架, Holder for sample tubes

美国标准筛网, USA Standard Sieve

USA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坩埚, Al-23 Crucible

Al-24坩埚, Al-24 Crucible

Al-23坩埚, Al-23 Crucible

Al-23舟;L1 (mm), Al-23 Boat;L1 (mm)