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             ????????? >> ????????????GCr15????????????????????????
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                  ????????????GCr15???????????????????????? | 
                 
                
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                  ?????0510-88268136 | 
                 
                
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                       ?????????#GCr15???????????????????????? GCr15???????????????????????????????????830-840????? 
????????????????? 
????1.??????790-810??????ˉ????650?????????HB170-207 
????2.???????790-810??????710-720????£???????HB207-229 
????3.?? ??900-920????????????HB270-390 
????4.??????650-700????????????HB229-285 
????5.?? ??860???????????HRC62-66 
????6.??????150-170??????????HRC61-66 
????7.?????????820-830?????1.5-3С??????-60????-70???????? +150????+160?????????HRC??67 
??????????????????????????? 
1??????????????????????????????????????????????????????????  
????2??????????????????????????????????????????????????? 
                       
                       
                      ?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??... 
                      ???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777 
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            | ???????2864  ??????2011/11/9 ?????????? ??????? | 
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