... , JIS, UPN, UPA Size: 8#~20# We provide high quality and low price channels. Channel bar details:ProductsSizeThicknessSquare steel pipe10-400mm ... thickness:7.6-15.8mmH BEAM100-900mm6mm,8mm,16mm,28mm and so on.Cold rolled steel strip32-685mm0.3-2.0mmPC ... .6-1.8mmZ28,38,500.6-1.8mmProcessing techniqueThreading,Nacking,Coupling and so on.Material:Q195,Q235,Q345,SS400,S235JR,X42,X46 ...