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BG-C204500(直型冷凝器/冷凝管/冷凝部分长500mm,磨口24/40)'); document.write('¥112
DZ-BG-无水无氧加样装置(内径45mm/四氟节门/节门下200mm)'); document.write('¥60
Lithium tetrafluoroborate, 四氟硼酸锂/10g/CAS:14283-07-9'); document.write('¥658.5