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Grandsea Building Material Co.,Ltd. is a company which is setting development, production sales and service in one, has been a professional manufacturer of aluminum windows & doors and steel doors almost 10 years.A land area of up to 4500 M² and 35 people.


Grandsea Building Material Co.,Ltd. owns one factory and the latest product line of double tempered glass aluminum windows and doors in China and obtain the CE certificate.


Gransea receives the customer first, the quality first the prestige first enterprise objective. We sincerely welcome people from all over the the world to do business with us,hope we can be good partners on business in near future.