Raya Tadbir Kavir, manufacturer of network equipment with Calwatt brand, manufacturer of copper network cables (cat 5e, cat 6, cat 6a, cat 7) in utp, sftp, ftp types) with various types of pvc, lszh, pe) covers, Network patch panel, network keystone, network patch cord and manufacturer of fiber optic connections such as pigtail and fiber optic patch cord with Calvat brand