... Technical Standards Profile1,nickel-plaated tensile hydraulic cylinder,so that the hinge is more durable.2,hing-strength toughness spring connecting ... .4,hinge opening angle betwee 90 degree to 110 degree,push the door slowly to 45 degree when without sound,has good ... stainless 201#.and packing is plastic packing or box packing.The hinge: Materials: steel nickel platingAngle of opening: 105, two ...