Perfect has long been committed to the research and development of special glue injection corner codes for system doors and windows, center column glue injection corner codes and special connection parts for sun room glue injection,and provide corner and center column glue injection connection solutions and high-quality services for system doors and windows. Customers continue to create greater value. Perfect has been widely used in many well-known door and window companies in China by virtue of its various performances far beyond ordinary corner codes and high-quality and perfect after-sales service system. Based in Foshan. Guangdong. Perfect hasa global vision.At present, our customers have spread all over the country.