Name:Reversible Plane Hinge(with spring)Number: CM-1220-H & CM-1220-HSCategories: Latches & HingesDescription: Reversible Plane Hinge(with spring) CM-1220-H(Material???High pressure die-cast zinc)???support the farthest weight:85kg CM-1220-HS(Material???Precision stainless steel)???support the farthest weight:95kg ???Special designed plane door hinge, safe and durable???Beautiful figure???The door frame and coldroom wall are in the same plane??????With CM-1230 series of door closer, can close door quietly, and prevent the cold air leaking???