Company Profile

uangdong Gaoyao HECHUANGDA Metal Products Factory is a modern enterprise specializing in designing and developing “OULANGSI” doors& windows hardware. We have a smart of professionals, follow the classic operation principle and employ the advanced techniques and equipment to make world-class products.

The brand of “OULANGSI” has a complete system of sophisticated products. It helps you to describe your living space in accordance with your own style. Recently, “OULANGSI” has developed rapidly in national market by providing high-quality products and taking scientific marketing methods. Today, “OULANGSI” gets favored by lots of customers at home and abroad.

“Quality and Honesty” is always the enterprise tenet of our factory. Most importantly, we put the customers’ satisfaction first. You can see from each product of “OULANGSI” which shows love and care to every its customer. Moreover, we will keep pursuing the values of “humanized design, high-quality products, substantial prices and efficient services”.

“OULANGSI” should be your first choice to bring you the most pleasing life with high-quality products and best after-sales services.  

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