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BG-C339250(具夹层蛇形冷凝器/冷凝管/冷凝部分长250mm/磨口19/22)'); document.write('¥273.6
BG-L510010(具塞比色管/10mL/10个)'); document.write('¥58.66
BT-12922-30(三通/砝兰/不锈钢/盘径30mm/KF16)'); document.write('¥85.33
4-Tolylboronic acid, 4-甲苯硼酸/5/CAS:5720-05-8'); document.write('¥3650
BT-12915-3008(真空快接/盘径30mm/管径8mm)'); document.write('¥32
3-Methyl-2-butenal, 3-甲基-2-丁烯醛/100ml/CAS:107-86-8'); document.write('¥1080