自信度是太大了点。发动机材料跟了老鹅几十年,你用合金钢,美,日只用炭钢加上热处理就被beat掉了。连热处理都比日本差一大截。
自信度是太大了点。发动机材料跟了老鹅几十年,你用合金钢,美,日只用炭钢加上热处理就被beat掉了。连热处理都比日本差一大截。
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