磷酸三钠溶液
Trisodium phosphate solution
以上为机器翻译结果，长、整句建议使用 人工翻译 。
结果表明：先用磷酸酸洗，再用氢氧化钠、磷酸三钠、碳酸钠溶液碱洗的预处理方案得到的转化膜耐腐蚀性能最优。
The results show that corrosion resistance of the stannate conversion coating pretreated as following process: acid pickled by phosphate first, then alkaline pickled by s...
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