了解您的挑戰

???????????????????? ??????????????????? ????????????????????????????????????????? ??????????????????????????????? ???????????????????????????

????????????????????????????????

  • ????
  • HFFR????????
  • ??????

?????????? —— ???????????????????????????

?????????Tyrax ESR ???

  • ????????55-58 HRC?
  • ??????????
  • ??AISI 420 ESR ?????
  • ????

??????????????????????????????????

??????????? TYRAX ESR ??????????

??????TYRAX ESR ????? ???????

 

 

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