??????????????????????
???б????????45#??50#??,45#??50#?????????????????????,??Щ????????????????.???????????????,?????????2.0MM,2.5MM,3.0 MM,4.0MM,5.0MM,6.0MM,10MM,12MM,16MM,20MM,30MM???.???10MM???????????1260??,10MM?????2000????2200??
????????????????????????????????????????????????г??????????????????????????????;????????????????
?г????????????????г??????????????????????????????????????????????????????
????????????????????????????????????????????????????????????????????????????
??????????????????????
??????????????????????
14??2000??8000+ 70??
8??2000??8000+ 21??
8??2000??8000+ 70??
8??2000??8000+ 32??
8??2000??8000+ 70??
10??2000??8000+ 21??
10??2000??8000+ 70??
????????????????????36?????????????????????????????