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4-(4-吡啶基)苯甲醛
色谱柱衬垫,铝(100只/包)
NET IND A
cis-1,3-二氯丙烯标准品
Rigid Sleeves - Full Length A Type
MEASURING TUBE, FOR WATER ESTIMATORS, ACC. TO DEAN STARK, 10 ML:0,1 ML, W. ST-STOPCOCK, WITH CONE
气相色谱柱,TG-5SILMS 15m x 0.32mm x 0.25μm
THERMOMETER F.FLASKS A.STILL HEADS, CONE ST 14/23, -10+250oC:1, 125 MM
Hibar 250-3,Superspher 60 RP-8e 4 μm定制柱
万通配件 (只)