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2,6-二氨基嘌呤
正己烷中9种多氯联苯-PCB混标(完全符合:GB/T14848-2017地下水质量标准)
铼(Re)AAS标准溶液,1000mg/L溶于2% HCl
THERMO.JACKET F.EU 806
VOLUMETRIC FLASKS, 5000 ML DIN-A, CONFORMITY CERTIFIED, RING MARKS, INSCRIPTION, AMBER STAIN GRADU
PEEK CAP.1/16 IN/0.5MM 1M
PE STORAGE VESSEL SGJ
SAFEGUARDING FOR "RODAVISS", NS 34.5
吲哚酮草酯标准品
1,3,5,7-四[4- (二乙酰氧基碘)苯基]金刚烷