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BG-C334250(具夹层蛇形冷凝器/冷凝管/冷凝部分长250mm/磨口24/40)'); document.write('¥280.8
BG-ZMP501214G2(多肽反应管/有效长度50mm/直径12mm/磨口14/20/砂板G2)'); document.write('¥100