steel flat bar,Sping steel,Standard: GB/T702, JIS G3101, JIS G3193 . machinery manufacturing, ship building etc Flat barSize: 100x14mm,100×30mm ... 60Si2MnStandard: GB/T702-2004, JIS G3101, JIS G3193Packing: In bundle, each bundle will be attached two metal tags ... , shipbuilding, railway spare parts, Iron tower steel structure, boilers making ,etc.Advantage: stable spec & accurate dimension flat bar