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S-氰戊菊酯农药标准物质(顺式氰戊菊酯)
胰蛋白胨大豆琼脂平板(含小牛血清+辅酶I)
Diamonsil C8(2) 10μm 250 x 4.6mm
GAS BURNER ACC. TO TECLU, 13 MM TUBE O.D., WITH AIR REGULATION, WITH SET SCREW, PROPANE
碳酸铵
3-氨基-2-氯三氟甲苯
DENSITY-THERMO-HYDROMETER F.PETROLEUM PROD., 0.610-0.700:0.001 , NOMINAL L. 155 MM, L. 425 MM
泵密封圈
4-氟-3-醛基苯硼酸
连续分液器吸头PD-吸头,5.0 ml,BIO-CERT ,独立包装,规格编码