Wenzhou Longgang Zhongyu Construction Engineering Co., Ltd. and Wenzhou Southeast Intelligent Technology Co., Ltd. ... Wenzhou Longgang Zhongyu Construction Engineering Co., Ltd. is a professional construction company with more than 25 years of construction experience and is committed to providing high-quality and exquisite architectural design services. Wenzhou Southeast Intelligent Technology Co., Ltd. is a company with intelligent building design as the leading direction. With a group of professional teams, we can provide customers with integrated architectural design and construction services.