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厚壁试管
4-壬基酚二氧乙烯醚(4-N-NP2EO) 标准品
SS column,18FT*1/8*2.1MM ID, 20% CARBOWAX 20M ON 60/80 CHROM
REACTION VESSEL, 10000 ML, DN 200, FLAT BOTTOM, WITH GRADUATION, FLAT FLANGE, FLANGE WITH GROOVE, CYLINDRICAL, ? 215 MM, HEIGHT 435 MM, BOROSILICATE GLASS
电极
2,5-二甲酚,100ng/ul溶于甲醇 标准品
4-氨基-3-肼基-5-巯基-1,2,4-三氮唑 AHMT
螺纹 20MM 蓝色 聚四氟乙烯/硅树脂 500/包装
Filter Bottle G/Hose 20000ml
BUTYL HYPERSIL 5UM 50X4.6MM COLUMN