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Kromasil Diol 柱
10种金属元素混标(钙镁铁铜锌铅镉铬镍锰)
磷酸二苯酯
CD-VOC气相毛细管色谱柱
FILTER APPARATUS,WITT-TYPE,INTERCHAN- GEABLE LID,WIDE NECK,SIDE PLASTIC HOSE CONNECTION,TUBULATURE NS
正癸酸
SPATULAS, DOUBLE, MADE OF STEEL, POLISHED, 260 MM LENGTH
0.5 ml A级酶测试刻度移液管-部分排液(棕色刻度)
Pentafluorophenylhydrazine
HYPURITY ADVANCE 3UM 50X4.6MM COLUMN