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BG-D232440G(微量升华器/25mL/磨口29/42/玻璃节门2mm/有效长度70mm)'); document.write('¥254.4
BH-10762(试管架/组合式/塑料/20mm×20mm)'); document.write('¥16.79
DZ-BG-具砂板节门连接头(有效长100mm/内径13.6mm/磨口19/22/G3)'); document.write('¥256