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BG-C314175(高容量回流冷凝器/冷凝管/夹层长175mm,磨口24/40,小咀外径10mm)'); document.write('¥156.8
BG-C184264C(砂板闪式层析柱/内径20.4/壁厚2.8mm/长457mm)'); document.write('¥120.8
BG-C334400(具夹层蛇形冷凝器/冷凝管/冷凝部分长400mm/磨口24/40)'); document.write('¥300.8