Name: steel c channel.steel z channels thickness required:2.0-3.0 width range:80-300mm length:6-12m base metal:SPCC,HDG c shape or z shape channelRaw materials: Cold rolled steel with painting or hot dip galvanized steel width:80-300mm,thickness:2-3mm,length:6-9mmCommon sizes:(a*b*c) ,other sizes are avaiable according to customers.Punching holes is avaiable according to customers drawing. ...