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肟吸威(需单独加运费)
35种有机挥发物混标 BePure-30494QM
Pentafluorobenzene Solution 2000ug/ml in Methanol
First Standard® 正己烷中虫螨腈溶液,1000μg/mL
43474, Benzo[b]fluoranthene (purity) 标准品
FAPAS 果汁-铁、铅、镉、锡
4-Methoxyaniline-2,3,5,6-d4 标准品
力康(Heal Force)PC-80B 快速心电检测仪
(办证) Chlorotoluron (N,N-dimethyl) D6,certified 标准品
Fosamine Ammonium Solution 100ug/ml in Toluene