Custom manufacture, including assembly, of molded reinforced fiberglass parts, namely, fire helmets, lamp housings, electrical boxes, vehicle bodies, underbodies, body panels and components, seed hoppers, shower stalls, outboard motor covers, components for sewage and water treatment facilities and industrial and commercial waste handling facilities, heat resistant parts made of high compression, thermal insulating, fiberglass reinforced filled polyester laminates for use with heat producing machinery