???????????????????????
?????,???????????,?й??????????????????????????λ??????ó??????2011??2012???2013????????????????????,??2013??????????????????????,???ó?????????????????????,???????,???????????,?????г?????????;???????,?????????????ü????????????,??????????????????????á???
??????????????????????
68*2200*6000
70*2200*6000
72*2200*6000
74*2200*6000
76*2200*6000
78*2200*6000
???????????????????
????????
???????????????й??????????????????????????????????ASTM??ASME????????JISS????????DIN????????BS????????? IO????????EN ???????????????????????????????????и???????????????????????????????8-600mm???4.5m ??????18m????????????????? ?????????????????????m??0.5mm????????100mm???8mm?????γ???1mm???и??????? 100mm?12.5????100mm?25???и??????????????
???5??30????????16mnq?????????????????????????
