??????????-???????????
| ??? |
???? |
??? |
??????? |
?綽 |
??? |
| ????????? |
20# |
53*3 |
?????????????????? |
?????? |
????? |
| ????????? |
20# |
53*4 |
?????????????????? |
?????? |
????? |
| ????????? |
20# |
53*5 |
?????????????????? |
?????? |
????? |
| ????????? |
20# |
53*6 |
?????????????????? |
?????? |
????? |
| ????????? |
20# |
53*7 |
?????????????????? |
?????? |
????? |
| ????????? |
20# |
53*8 |
?????????????????? |
?????? |
????? |
?????????,???????????,??ξ????????,?????????????,??????????,?????????????
1)?????????:DIN??и???????????????,?????????,?????????????
2)??????:DIN2391, DIN2445, EN10305, DIN1629, DIN1630, ASTM A179
3)???????:ST35??E235) ST37.4 ST45??E255) ST52??E355)
4)?????????:NBK??+N) GBK??+A) BK??+C) BKW??+LC) BKS??+SR)
5)??????:????????????????,????????й?,?????,?????,????????,????,????????
6)??????:????????????,???????????,????,?????е,??·????,???????,????,????,?????,????,?????,??????,???,??ˉ?豸????и????
|
?????????λ???
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????????????
