??????
???????
??????
?? ???
??????
?????
??????
???????
??????
??????
?????
??????
?????
???????
???????
????????
???????
??????棺
?????????12Cr1MoVG??15CrMoG??10CrMo910??P22????T11(P11)??12Cr2MoWVTiB(????102)??T91??Cr5Mo??T5??P5????16Mn??Q345B????27S
???????
????>>>>
Q345B?????
15CCrMoG????
?????????
????GB/T8162-1999?????
?????GB/T8163-1999
?е????ˉ??GB/T3087-1999
GB5310?????ˉ??
16Mn?????
?????豸?????????
???????
????????
?????????GB/T5312-1999
?????????
????
??????
??????
??? >> ??????
?????????45#??????-?????????????
2019/3/29
??п?????????????????????????????
2018/11/20
630*70????????????
2018/10/25
GB9948?????????????????????????
2018/10/25
83*6?????????????????????
2018/6/5
89*6/20#???????????????????
2018/5/14
20#/45#??????????
2018/3/21
????20G?????ˉ?????????
2018/3/12
GB6479?????-????????????????
2017/5/6
Q345B??????????????????????
2017/4/21
???????????60-140mm??????????????????
2017/4/14
??????????-???????????
2017/4/3
15CrMoG???????-??????????????
2017/3/21
GB3087????????????????????????
2016/6/17
70*14/20#???????????????μ????
2016/2/24
20#????????????????????????????????
2015/11/22
16Mn????????????????????????????????
2015/10/2
???????????????????/?????????????
2014/11/1
20#45#??????????????????????????????????
2014/3/22
106B?????????????????????????μ????
2014/3/15
?????490????? ??1/25 ????
????
β?
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?綽??0510-88264799 ???棺0510-88266595 ?????13395189919 13395149980
??????????л??????δ??77??????????г?B??308??
????????
???????
??????
午夜福利免视频100集2019