Name: steel c channel. type: c ,z channel thickness required:2.0-3.0 ... range:80-300mm length:6-12m base metal:SPCC,HDG c shape or z shape channelRaw materials: Cold rolled steel ... 300mm,thickness:2-3mm,length:6-9mmCommon sizes:(a*b*c) ,other sizes are avaiable according to customers.Punching holes ... coils,GI steel coils,corrugated steel sheets,sanwich board of EPS and rock wool...Pls have a look at ...