The field application proves that the corrosion free service life of plain rod with brush plating is more than two times as long as that of the original one.
现场应用情况表明，采用电刷镀镀层的光杆，无腐蚀使用寿命已经达到原来的两倍以上。
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The field application proves that the corrosion free service life of plain rod with brush plating is more than two times as long as that of the original on...