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ASTM-THERMOMETER (SOLID STEM) WITH CELSIUS-SCALE RANGE, YELLOW ENAMELLED ASTM TYPE: FUEL RATING, S
SCREW CAPS, TOP WITH HOLE, GL 18
3%NaCl蔗糖
铅片Pb,不规则片状,99.999
LC-SCX(强阳离子) SPE小柱, 1支
砷标准溶液(As 100mg/l)
Metrafenone,10ng/ul 标准品
己二酸二乙酯
TSA-YE平板(9cm)
毛细管柱配套成套工具