Foshan Liangge Building Material Co. Ltd. is one of the leading professional corporations in the window and door industry since 2000. With over 20 years production experience, we are the 1st factory in China to adopt TPS – lean production and merit score systems for good management in aim to make our products quality visible and lead time punctual for each single customer. We provide one stop solution for building projects and specialize in whole house customization with products ranging from sunrooms swing, casement bi-fold windows and doors, cast aluminum security door shower partition, aluminum metal door aluminum cabinet door etc. With our professional engineers for technical R , D testing and support, we have become one of the best TOP 10 window and door vendors for big and small project contractors with over 100 patents. We are also ISO certified factory and we have developed business with over 600 distributors and retailers home and abroad.