Specifications include, but are not limited to: This specification is applicable for composite frames and covers. All products shall be manufactured in the United States of America. All manufacturers shall be approved suppliers and shall be able to demonstrate that there is an acceptable quality control program at the producing facility prior to supplying products. Material. Composite frames and covers shall be manufactured from fiber reinforced polymer (FRP). They shall consist of an FRP matrix consisting of between 45% to 70% fiber reinforcement by weight. Fiber reinforcement shall consist of fiberglass, carbon, aramid, basalt and/or natural fibers. The polymer matrix shall be thermoset consisting of a polyester, vinylester, epoxy, polyurethane, and/or hybrid chemical composition. Manufacture. Cover shall include two locking lugs made of stainless steel. The locking lugs shall be designed to lock under the seat of the frame. Locking lugs shall be actuated by quarter turn paddle lock with 316 stainless-steel penta-head bolt. Cover Diameter should be 32”, with a clear opening of 30”; cover thickness should be 1-1/2”, with a frame height of 5”. The cover shall weigh approximately 62 lbs., and frame shall weigh approximately 48 lbs. Covers and frames shall both have dampeners around the perimeter of each made of hard-wearing polyurethane. Composite frames and covers shall be of uniform quality, with a general dimensional tolerance of 1/16- inch. The finished product will feature a strength to weight ratio of 750:1 when comparing proof load capacity to weight of the cover. Perimeter overmold gasket system shall be integral to the cover. Perimeter overmold shall be integrated to protect the laminate portion of the cover, reduce traffic shock and to abate noise and malodors. The laminate portion of the cover shall extend far enough to engage with at least 1/2-inch of the frame seat, when centered. Frame shall have a polyurethane overmold to protect it from damage. The overmold shall extend at least 1.5-inches down the outside wall of the frame and shall encapsulate the seat of the frame (cover bearing surface). Marking. Each product shall be identifiable and show, at a minimum, the following: name of the manufacturer, country of manufacture ("Made in USA"), and individual series number. Product shall include all lettering as shown on the specification drawings. Each cover shall include the City of Bullhead City Utilities Department logo on center. The logo will be made available electronically to bidders upon written request.