11??17??????3.0*4*8??q500qe????????????????????????
???????????????????
????????????????????????
????????????????????塢???????????п?????????????????????????и????????????????????????????????????????????????????????????????????????????м????????????????????????????????????????????????????????????似???????????420MPa?????????????????????????????????
???????????????????????
8??1800??8000 35??
8??1800??8000 80??
8??2000??8000 32??
8??2000??8000 42??
8??2000??8000 21??
10??1800??8000 32??
10??1800??8000 80??
11??17??????3.0*4*8??q500qe?????????????????????????????
