USA标准筛, USA Standard Sieve

美国标准分子筛, 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-24管(两端开口);外径 (mm), Al-24 Tube (both ends open);OD (mm)

Al-23绝缘管, 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

Al-23坩埚, Al-23 Crucible