Yanyi International Trade CO.,LTD is the Sub-company of Yanyi Construction Group ，which focus on international trade &business of Yanyi Group，we are manufacturer of Building glass ，Windows &Door，Fly screen. It has 4 production bases in China.which is specialized in glass deep processing and windows systems and integrating production, research and development, sales and service. Main Products： Architectural Glass/Energy Saving glass Safety Glass Pattern Glass Aluminum windows&doors Casement windows&Awning Windows sliding and folding window and doors Fly Screen