... 3>Size :80x30x12x2.0x L------250x70x20x3.0xL Cold Roll C-channel--thin--Usage(1) construction building(2). Some kinds ... of machinesGB standard --Grade:Q195B Chemical Composition---C-0.06-0.12, Si≤0.30, Mn0.25 ... -0.50,S≤0.05 , P≤0.045,Cr≤0.30,Ni≤0.30, ... , T.S.(MPa) 315—430Payment termsBy 100% irrevocable L/C at sight or T/TDelivery ConditionsPacked by bundles , and shipment ...