1.Brass cylinder,Brass key 2.apply high strength structural steel or stainless steel 3.Finish : mirror / sand / titanium Central lock Item No.StyleFinishD-100Square Double Door LockMirror,Sand,TitaniumFeature: 1. Independent arc appearance design,beautiful and durable;2.doesn't need to punch the glass.Our Company Introduction:Lidegao Gating Hardware Factory are specialize in manufacturing floor ...