产品性质
Sigma-Aldrich
Spinbar® magnetic stir bar
Spinbar® 磁力搅拌棒
Vacuum filtration assembly funnel tops
Wheaton micro Soxhlet extractor
Wilmad® NMR tubes 5 mm diam., precision
Wilmad® NMR 管,直径 5 mm,精度型
Kern 440 series Toploader balances
Cylinder
钢瓶