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SS column,3M*1/8*2.1MM ID, BASF D439006
4-重氮-3-甲氧基二苯胺硫酸盐
氟氯氰菊酯
MEAS.VESSEL F.743/763
CHROMATOGRAPHIC-COLUMNS, W. RESERVOIR 4000 ML, SOCKET ST 29/32, ST-STOPCOCK W. SOLID PLUG, 80 X 1
方形试剂瓶用防盗盖, GL 45
4种元素ICP-MS混标,溶于3% HCl + 1% HNO3
具T型玻璃节门换气,24-29
磁力搅拌子,PTFE,13x8 mm,八角柱形,带中心环
4-十二烷基苯磺酸