Related Articles2 see quality: The plate thickness of doorcase of eligible exit of guard against theft should be in 2mm above, door body ply is in commonly 20 Mm above, door body weight is in commonly 40 Kg above. Tear open box of next cat eye, doorbell or lock handle to wait can see, the plate thickness of door body should be in 1mm above, root of know exactly about sth reinforces reinforcing steel bar inside, make face plate of door body around organic ground joins together, there had better be the asbestine stuff that has function of fire prevention, heat preservation, sound insulation to serve as filler inside the door, with hand knock door experience is given out " Dong Dong " noise.
3 guard the entrance lock up: Whether does the examination use branch of classics public security to detect eligible guard against theft is special lock, be in in lock due the armor plate of ply of 3.0 Mm above undertakes protective.
4 see a service: Whether to agree the fittings that after installing gate of good guard against theft, should check fittings and the data such as the key, insurance policy, bill and after service sheet and pupil of guard against theft produce manufacturer to offer and data.