1. Material:brass, 2. Surface finish: polish,plating,wiredrawing GP,PC,PB,CP, ... ,We professionally produce various of hinges, (door/window/furniture) bolts, ball catch.we have been engaged in hardware for over 13 ... "*1"*1.0mm1220360*270*17020kg6"*1"*1.0mm1220360*270*17021kg Nickel plated brass door bolts