Yuantong Window Door Curtain Wall Linyi Co., Ltd. is the biggest windows and doors manufacturer in Linyi City, Shandong Province, China.

We have 5 factories. Our designing and production teams have been professionally producing aluminum/UPVC profiles, aluminum windows/doors, UPVC windows/doors, curtain walls, garage gates and relative glass for more than 15 years. Our products have been exported to the Mid East and America.