This cold roll forming machine lineadopts advanced technique, which integrates gas, electricity and machinery, andthis line is the special equipment for processing colored steel sandwich panel.Its working speed can be adjusted byfrequency converter, and it can processsandwich panel at one time. The whole line consists of decoiler,molding core,compound part(knocking our the groove, glue instillment, heating, compound,rolling, grooving, finishing, air-powered, automatically cutting). It is anecessary equipment for producing industries factories, roof tile and wallpanel of warehouse