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102815284216 |
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20-108 |
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?????????#GCr15???????????????????????? GCr15???????????????????????????????????830-840?????
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????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
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???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777
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