?????·?????????????????
??·????????????????????????
46*2200*6000
48*2200*6000
50*2200*6000
52*2200*6000
54*2200*6000
56*2200*6000
??·????????????????????????
????????HB??
??????????????3000kg?????????С?????????10mm??????????????????棬??????????????????????????????????????????????HB??????λ???????/mm2 (N/mm2)
6??23??26*1800*8m??15mnvnq??·????????????????????????????????
