Foshan Jianya Door And Window Technology Co., Ltd   Foshan Jianya Door and Window Technology Co.,Ltd.is a professional door manufacturing enterprise that integrates research and development,production,sales,and service.  Jianya regards"aluminum door manufacturing expert"as its own responsibility.Since its establishment,it has focused on aluminum doors and innovation.It has established the"aluminum door research and development center"and the"industry university research base",and...