Janzu aluminum facotry supply , high quality using imported punching maching and low price. Welcome to contact us. Aluminum punching machine with a pattern offered by customer. a different pattern need a different die. Such kind of perforated panel used at machine cover, facility protect. To protect the facility and machine and keep air flow and cooling system. Welcome to contact us, for quotation, maybe it will be a good supprse!! Aluminum panel cover for machine and facility, advanced manufacturing line: We welcome to email ask for quotation. Contact us by send detail drawing and requirenment on aluminum covers!