steel fins 中文意思是什麼
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Standard specification for seamless and welded carbon steel heat - exchanger tubes with integral fins
帶整體散熱片的無縫和焊接碳素鋼熱交換器管的標準規范 -
Standard specification for seamless and welded ferritic, austenitic and duplex alloy steel condenser and heat exchanger tubes with integral fins
無縫和焊接鐵素體奧氏體和雙合金鋼冷凝器和帶整體散熱片的熱交換器管的標準規范
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