Below is a list of Heavy Duty Hinges manufacturers from Middletown, Pennsylvania. Heavy duty hinges are door suspension tools characterized by their high performance, durability and composition. “Heavy duty” can be descriptive of many kinds of hinges within discrete contexts. For example, within the context of cabinet hinges, a stainless steel hinge in a metal industrial cabinet can be considered heavy duty compared to hinges in wooden cabinetry in a home.