不朽情缘

??????????????????????

8??2000??8000 42??
8??2000??8000 21??
10??1800??8000 32??
10??1800??8000 80??
10??2000??8000 21??
10??2000??8000 52??

??????????????????????

????????HB??

   ??????????????3000kg?????????С?????????10mm??????????????????棬??????????????????????????????????????????????HB??????λ???????/mm2 (N/mm2)

???????????????????????

10?·????й?PMI????50.9??????3?????????????????ü????????????????????????????????????????????????г?????????????????????????????????????????????????????????????????????????????????????????????????????г???????δ?????????販??????????????????????????????????????????????????????????????????????л???????????????????



????14*1810*8000??16mnq????????????????г???????????