Security Door Frame Metal TEC-100 1.economical,practical and inexpensive 2.waterproof and fireproof 3.6 zones security ... , stations, stadiums, convention venues, entertainment, large gathering places, etc., as well as hardware, electronics, jewelry, military, Mint factories ... wear Persons, pregnant women, floppy disks, video tapes etc.Technical parameters· standard: "GB 15210-1994. Walk-through ...