Hunan hui large building materals co.,LTD is a well-known supplier of household safety industry as a whole solution for professional and leading brands,headquarters is located in changsha,hunan province,is a set research and development,production,sales,installation and service in one,professional provide zinc steel,aluminum alloy combined-type balcony railings,outdoor fence,windw,shutters,staircase handrails,wrought iron gate,and other related products and services,is the domestic zinc handrailing steel,aluminum alloy industry,the most professional and scale of high-tech enterprises.The company has the first-class modern workshops,first-class spraying production line,perfect testing equipment,adhere to market-oriented,with the development of science and technology as leading,development of new products,invested a lot of resources development and management,ensure that send ? products