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乙醛缩二甲醇
二硫代缩二脲
抑制器外接水系统安装包
99.9%一氧化锡
药匙,PE,无色,长400 mm,约1000 ml
FRACTIONATING COLUMNS ACC.TO VIGREUX.PRECISO WITHOUT GLASS JACKET CONE ST 29/32 EFF.LENGTH 600 M
10µL 进样针
BOTTLES CONICAL SHOULDER,LD-PE, NARROW NECK,TRANSP.,W.PP-SCREW-CAP GL 25,500 ML.
氯甲酸丁酯
CULTURE BOTTLE WITH STRAIGHT RIM, DURAN