... : special security lock, which consists of additional 13 locking points7) Diversified designs and colors are available 8) Hinges: 3 galvanized steel hinges ... (interior hinge, opening 90 degrees)9) Threshold: stainless steel threshold 10) Accessories: hinges, locks, handles, viewer, doorbell, rubber seal, ... , 180 degrees 13) Suitable for residential houses, apartment and entrance doors Security doors