Guangxi Jianniao Building Materials Co., Ltd. is a company specializing in the production and processing of double-wall bellows, ductile iron manhole covers, FRP septic tanks, steel bellows, plastic buckets and other products, with a complete and scientific quality management system. The integrity, strength and product quality of Guangxi Jianniao Building Materials Co., Ltd. are recognized by the industry. Welcome friends from all walks of life to visit, guidance and business negotiations.