Sturdy zinc alloy construction Crafted from zinc alloy to deliver reliable strength and long service life in a variety of environments. These hinges are built to perform consistently in both residential and commercial settings. Threedimensional adjustability Left right and inner outer adjustments are available via a hexagonal screw, enabling precise alignment between door and frame. This allows easy correction of misalignment and ensures smooth operation after installation. opening angle Maximum opening angle of 110 degrees supports doors up to 70 kg, making these hinges suitable for heavy interior doors, light to medium duty exterior or commercial doors, and other demanding applications. Specifications Material: zinc alloy Maximum opening angle: 110 degrees Maximum door weight: 70 kg Adjustability: left right and inner outer via hex screw Use scenarios 1) Residential heavy interior doors: solid wood or composite doors up to 70 kg that require precise alignment for smooth daily use. 2) Commercial spaces: office or storefront doors where reliable performance and a wide opening angle improve accessibility and traffic flow. 3) Installations with potential clearance or alignment changes: doors that benefit from adjustable mounting to achieve gap and swing after installation.