2 bar hinges are a type of hinge commonly used in top hung casement windows. These hinges are designed to support the weight of the window sash while allowing it to pivot open and closed.

Challenges include raw material price volatility, especially for aluminum extrusion inputs. Industry fragmentation and intense competition also restrain profit margins. Overall however, increasing aluminum usage in the buildings sector points to a positive future outlook.

What is a top hung window restrictor stay? How does the top hung window restrictor/window limiter effectively control the opening angle of the window?