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BH-10280(低密度四氟带/聚四氟乙烯低密度生料带/PTFE/20m/20mm)'); document.write('¥9.89
BG-C264225(高效蛇形回流冷凝器/冷凝管/夹层长225mm/磨口24/40/高375mm)'); document.write('¥160
SV-P170008(厚壁耐压反应管/350mL/外径80*115mm/#15螺口) '); document.write('¥239.2