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BG-C184261(闪式层析柱/内径20.4mm/壁厚2.8mm/长203mm)'); document.write('¥86.4
BG-C144400(格式蛇形冷凝器/冷凝管/冷凝部分长400mm,磨口24/40)'); document.write('¥120.8