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4’-四甲基-二-2,2’-螺苯二氢吡喃
邻二氮菲亚铁离子指示剂
Talboys 1.22m通风橱实验架
1/4X1/8不锈钢变径两通,1只
Whatman 微纤维滤纸GF/B 1um,90mm.25片/包
MEASURES,CONICAL SHAPE WITH ROUND BASE, 500:10 ML, SPOUT WITHOUT HANDLE, DIN-B, GRADUATED, PMP
LiChroCART 30-2,LiChrospher 60 Si 10μm定制柱
10ml A级双刻度线胖肚移液管、等待时间15s、
KECK FLAT SEALINGS, EPDM, 12 X 7.5 MM
CONTACT THERMOMETER, ADJUSTABLE WITH TURNING MAGNET, ADJUSTING AND READING SCALES, YELLOW ENAMELL