???????????????????????
????????
?????????????????????磬????????????????????????????????????????????????????????????λ????? m ????????? cm ????????? mm ??????????????У????????磨?壩???????????????????????λ??
???????????????????
???????????????????????
8??1800??8000 80??
8??1800??8000 35??
8??1800??8000 80??
8??2000??8000 32??
8??2000??8000 42??
????????
???????????????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??????????????
???????????16*1800*8m???????????????????????
