Ni ibere lati mu líle dada ati ki o wọ resistance ti 16Mn onigun tubes, dada itọju, gẹgẹ bi awọn dada ina, ga-igbohunsafẹfẹ dada quenching, kemikali ooru itọju, bbl yẹ ki o wa ti gbe jade fun awọn onigun onigun tubes. Ni gbogbogbo, pupọ julọ ...
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