Langfang Zitong Building Materials Co., Ltd. is registered in Dacheng County Economic Development Zone, Langfang City, Hebei Province, with legal representative Zhang Shanshan. Its business scope includes processing and sales of crack resistant mortar, mesh cloth, insulation nails, rubber products, plastic products, waterproofing membranes, fireproof boards, fireproof bags, fireproof blankets, fireproof mud, and fireproof modules; Sales: Rock wool products, rubber products, aluminum silicate products, composite aluminum silicate products, polyurethane products, extruded boards, insulation engineering, anti-corrosion engineering.