Qingdao Dazheng Marine Parts Co., Ltd. is located in the central location of Shandong Peninsula, Laixi City, Qingdao, with convenient transportation. It is the only roadbetween Qingdao, Yantai and Weifang.Our company designs, processes and installs dust-removing equipment and supporting spiral pipes and square pipes by itself. Thespiral ducts and accessories produced by our company have the characteristics of low resistance, good strength, corrosionresistance, smooth inner surface, flatness, beautiful appearance, easy installation, good sealing and strong applicability.Since the establishment of the company more than ten years ago, the management and all employees have made every effort to create the first brand in the ventilation industry for the company's goal of excellent quality and excellent service.