7%7%7()(),7%77%7,,PNJPPP,7%7*%,&7%7,7%7,7%7,7%7,7%7%7%7%7%=NJP$%NJP%$NJP%7%7ᷛޚߚѿ㔥ZZZE]I[ZFRPܡ䌍ϟ䕑()(),DPP7%=EFG1PP1P()(),ᷛޚߚѿ㔥ZZZE]I[ZFRPܡ䌍ϟ䕑()(),()(),ᷛޚߚѿ㔥ZZZE]I[ZFRPܡ䌍ϟ䕑()(),()(),NVPPPPPᷛޚߚѿ㔥ZZZE]I[ZFRPܡ䌍ϟ䕑()(),$$$PP7%7%$$7%77%7PP$PP$NJP7%7NJP7%7$()(),$$$$$$$$$$1PP$$PPPP$$$ᷛޚߚѿ㔥ZZZE]I[ZFRPܡ䌍ϟ䕑()(),$NJPNJPIURPPP()(),IIGB1222GB230GB224GB2828TB/T2239I1260Si2Mn55Si2MnGB1222HRC41460.3mm1mm11A