~ 材料對照表 ~ cutting class AISI DIN JIS U.N.E. 4 1042 * * * 1064 Ck60 S58C F-1150 1070 * * F-5103 1080 Ck75 * F-5107 1095 * * F-5117 9254 55Si7 * F-144 1335 * * F-411 5120 St52-3 SCr420 F-431 A38172-2 ...
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