S30C S33C S35C S38C S40C S43C S45C S48C S50C S53C S58C S09CK S15CK S20CK
日本JIS标准淬透性结构用钢牌号:
SMn420H SMn433H SMn438H SMn4443H SCr415H SCr420H SCr435H SCr440H SCM415H SCM418H SCM420H SCM435H SCM440H SCM822H
S30C S33C S35C S38C S40C S43C S45C S48C S50C S53C S58C S09CK S15CK S20CK
日本JIS标准淬透性结构用钢牌号:
SMn420H SMn433H SMn438H SMn4443H SCr415H SCr420H SCr435H SCr440H SCM415H SCM418H SCM420H SCM435H SCM440H SCM822H
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