Suitable for acidic, alkalescent, refractory steel welding rod of diameter of 2 ~ 6.
适用于直径2 ~ 6的酸性、碱性、耐热钢等多种焊条焊接。
2
Focus on the peculiarities of refractory gold ore containing rich arsenic and rich sulphur in Jiangxi gold mines, the paper propose a new method and technology of acidic aqueous chlorination of gold.