Hebei Gangrui Environmental Protection Technology Co., Ltd. specializes in the research and development, and transfer of environmental protection products; processing and sales of: dry-mixed lightweight aggregate concrete, thermal insulation nails, mesh cloth, thermal insulation mortar, fire-resistant boards, fireproof mortar; sales of: thermal insulation bubble film, sound-absorbing materials, thermal insulation materials, sealing materials, fire protection materials, fire-retardant coatings, electrical wires and cables, rubber products, plastic products, chemical products, hardware and electrical appliances; thermal insulation engineering construction.