... use and unique design Singel / Double latch european-style inerior door lock 1,Material:Plate-Zinc Alloy. Handle-Zinc Alloy2,Length ... ,Suit for the thickness of the door 40-505,Use: door.housing. hotels.office buildings,etc6,Combined with a special multi-layer plating ... ,S/G,AB,AC, ABR. accessories :necessary screws. suit for door : inerior door ,access door, swinging door.