阿法埃莎
一次性红外光谱片, Disposable IR cards
校准用标准, Calibration standard for MSB
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坩埚, Al-23 Crucible
Al-24坩埚, Al-24 Crucible
Al-23 Boat;L1 (mm)
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