1)material: aluminum, zinc 2)finish: powder coated 3)50000 times test 4)OEM, Design , Buyer label offered. 1)material: aluminum, zinc2)finish: powder coated 3)50000 times test 4)OEM, Design , Buyer label offered.Good quality, Reliable supplier, Competitive Price, Warm service,Prompt delivery, Window hardware, window accessory, window handle,window hinge, window lock, door handle,crescent lock. 1) ...