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????????????????????????????16mm-95mm???1.5mm-15mm??????????????.??λ???????????8m-60mm???1mm-14mm??????????????95mm-133mm???6mm-28mm ?????10#??20#??45#??12Cr1MoV??15CrMo??35CrMo??40Cr??42CrMo??T91??10CrMo910??????102???????????? 
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????? ?????? ?? ?? ?????? ??? Standard  ????GB/T3639 ????GB/T8713????? ????DIN2391-2 ????HK15-2000 ????????? Uses  ?????????????е???????豸????????? ?????? ??????  ?????????? ???? ? ??  ???? / ? BK ????????????????????????????????к?С?????  ???? / ?? BKW ??????????????С?????????????????????????????????????Σ????磺???????????  ?????? ?????????????? BKS ??????????? Ac 1 ???????????????????????  ??? GBK ??????????????????????????е???????  ???? NBK ??????????????????????????е?????  
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                      ?????????????????????????????????????????????????????????????????????????????????????????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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