The special surfacing electrode by ourselves is researched. Adding no ore powders which helps to act as stable arc,slagging and creating gas,the electrode core is with high resistance and easy to occur red or the coating crack,and so on.
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Rich selenium ore powders 富硒矿粉
selenium ore powders 硒矿
ore powders
矿石粉
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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