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.

youdao

这种钢板涂层具有高耐蚀性、高延展性、好的导电性等性能。

This steel plate possesses the performance of high corrosion resistance, high ductility and good electrical conductivity.

youdao

实验结果表明：采用辊涂法预处理液c 50可获得耐蚀性、涂装性及加工性均优的合金化热镀锌有机涂层钢板。

The results of study show that: if the rolling chemical pretreatment solution C50 is used, the products with both high corrosion resistance and good bonding can be obtained.

youdao