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BG-Y282440(双磨口石英管/磨口24/40/外径28mm/长600mm)'); document.write('¥560
BG-A252419(B型接头/上24/40/下19/22)'); document.write('¥24.8
Triethyl phosphonoacetate, 膦酰基乙酸三乙酯/1kg/CAS:867-13-0'); document.write('¥630
BG-S311740(T型连接管/玻璃三通节门/外径10mm/孔径4mm)'); document.write('¥122.4