GMI Composites Inc. specializes in the manufacturing of high quality, composite products for the Infrastructure, Electrical, Aerospace and Medical Device industries. GMI Composites' Infrastructure Products group offers a complete line of heavy duty, light-weight, corrosion resistant manhole cover products for the utility and construction markets. GMI Composite Covers and frames are characterized by their lightweight design and ease of handling. Ergonomic products, such as the GMI composite manhole cover, prevent injuries and contribute to a safer job site. Decreased lost-time accidents, reduced workman's compensation expense and insurance premiums will save your company money.