Replacement O-rings for five-position NMR tube cleaner system

Microcapillary tube Drummond Microcaps^?

Drummond Microcaps微量毛细管^?

Ace auto-zero McLeod vacuum gauges

Ace flat-bottom reaction flasks

ACE heavy-wall powder funnels

Ace reaction flask head w/ thermometer joint

Adjustable Jacobs^?chuck

Aldrich^?corrosive lecture-bottle gas regulator

Aldrich^?macro-micro KBr pellet die

Aldrich^?大小型 KBr 压片模具

Aldrich^?System 45^TMpowder addition funnel

Basic laboratory brush kit