... 2) Thickness: 0.9mm to 3.0mm 3) Plain & Slot MS Channel steel bar1.Origin: Tangshan city 2.Standard: GB , JIS ... . 11. Wide range of application: Construction , curtain wall, doors and windows, railway and traffice systom , vehchile ,machineExcept U channel, we also ... 86-315-5399369-602sales602 at tsruixiang dom com dom cn MS C steel channel