item: steel channel bar channel steel upn size:50x3.7x4.5---400x102x12.5 length:3-12m surface:black or galvanized, painted,sandblasted ,perforated ect. mill:TANGSHAGN LOCAL MILLS moq:25 tons packing:in bundles tied with wire rods or steel strips,suitable for sea transportation payment terms:TT or 100% irrevocable LC at sight lead time:within 20-40 days after receipt the advanced money christina ATqingtiansteel DOT com what app/wechat +8618330349631 skype niu609856672