Hello , Meidoor System is working for aluminium window and door for more than 15years ,the founder is Mr.Jaywu ,his father is working for more than 30years in hometwon ,Shandong ,China.Right now ,the New brand Meidoor will become the worldwide aluminium window and door system manufacture for both completely window and door,but also service for the facotry for more than 20countries window and door factory for aluminium profiles and accessories.welcome to join with Meidoor for both finish product and profiles .we will become your best suppiler from China