1)Finish: with high quality nickel plated, durable. 2)Certification: we pass the ISO9001:2000 and CK identification. available adjustable door hinge1Cycle test 50,000 times opening and closing guaranteed 2One way, C=0,9,18 3Antirust protection layer 1.Cycle test 50,000 times opening and closing guaranteed2.Material: Steel with nickel plated3.Antirust protection layer4.Angel of opening:105°5.Hole ...