校准用标准, Calibration standard for MSB

美国标准筛, USA Standard Sieve

美国标准分子筛, USA Standard Sieve

USA 标准分子筛, USA Standard Sieve

Al-24管(一端封口);外径 (mm), Al-24 Tube (one end closed);OD (mm)

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实心棒, Al-23 Solid Rod

Al-23坩埚, Al-23 Crucible

Al-24坩埚, Al-24 Crucible