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BG-Y520035-2(高真空石英比色皿/两通/35mm*12.5mm*12.5mm/光程10mm)'); document.write('¥640
BH-1707621(保温管/内径76mm/壁厚21mm/长0.5m)'); document.write('¥10.5
BH-10469-3-5(聚四氟管/透明/内径3mm/外径5mm/米)'); document.write('¥6