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(3,4-二甲氧苯基)乙腈
MEASURING BEAKERS, WITH HANDLE AND SPOUT, CRYSTAL CLEAR,GRADUATED, SAN,3000:100 ML; H 242 MM ? 1
填充柱 Porapak QS 100/120
Grade287/½ 定量滤纸
模拟乳粉中菌落总数质控样 ,真空西林瓶
GAS WASHING BOTTLES, DRECHSEL, WITH SINTERED DISC, COMPL. 250 ML, P 1
48种元素ICP-MS混标,溶于5% HNO3 + Tr HF + Tr HCl
N,N-二甲基甲酰胺(DMF)
填充柱 Chromosorb 101 80/100
ASTM-THERMOMETER (SOLID STEM), WITH CELSIUS-SCALE RANGE, YELLOW ENAMELLED, ASTM TYPE: SAYBOLT VISC