... by any requirements Finish:plain,zinc plated 2BB steel hingesWhy Choose Us:Business Type: manufacturer since 1990Employees: more than ... steel and the copper. 2, High quality bearing, and the high-level resistance oil, protects the bearing, ... than 0.3mm, guaranteed that door leaf opening is relaxed, does not scratch the doorframe. 5, The surface treatment combines the special machine-finishing and the ...