...IFI CORROSION 腐蚀作用 IFI PLATINGS AND COATINGS 镀层和涂层 IFI-140 2000 CARBON AND ALLOY STEEL WIRE,RODS,AND BARS FOR MECHANICAL FASTENERS 用于机械紧固件的碳素钢和合金钢的线材，圆...
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金属镀层和涂覆层 metallic plating and coatings
镀层和涂层
Coating and coating
以上为机器翻译结果，长、整句建议使用 人工翻译 。
发达国家的许多钢铁厂开发了各种无铅且耐蚀性更好的汽车燃油箱用表面处理钢板材料，包括无铅镀层钢板和预涂层钢板两大类。
All kinds of Pb-free surface treatment steel sheet for automotive fuel tank with better corrosion resistance were developed by many steel company in the developed country.
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