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2,5-二羟基苯甲醛
AA Grade Cesium, 25 mL 1,000 mg/L in 1% HNO3
GL-SPE 减压连接管
SOCKETS,CYLINDRICAL SHAPE, ST 14/23 ?:17 MM, L:120 MM, W.TH.:1,8 MM/ acc. to DIN 12249
苯甲酰氯
气相色谱柱,TRACE TR-1 气相柱, 60m, 0.25mmID, 0.25μm 液膜厚度
ASTEC CYCLOBOND I 2000 DNP 5UM 15X2.1MM
ST-STOPPER ST 45/40, HOLLOW, SAFETY NUT, HEXAG. PLATE, BOROSILICATE GLASS
Coupling unit for Chromolith columns, dead volume free
HJ734-2014挥发性有机物混标(24个化合物)