... ball-head square hinge,bending hinge,european hinge,automobile hinge,shelf-bracket,spring hinge,butterfly hinge,t hinge etc.06.materials: ... hasps are made of copper, aluminum, zinc, iron,stainless steel and other materials.bronze, nickel, chromium, color of the surface ... durably , not change color.08. We have strong technology power and engineer terms, Provided that the blueprint or sample , we can ...