In April 2019, Mcwell and China Europe International Construction Co., Ltd. signed a contract for the supply of low-profile ventilator for Longteng's annual production capacity of 200,000 cubic meters of prefabricated PC component production base and R&D center project. 

Longteng China Europe’s 200,000 cubic meter annual production base and R&D center for prefabricated PC components is located in Meishan City, Sichuan. The ventilation, lighting, smoke exhaust, ventilation, and dust removal of the factory building will affect the production and processing of indoor machinery and equipment.

In the current planning stage of the project, the general contractor and the owner have very high requirements for the natural ventilator. The general contractor, China Europe International Construction Engineering Co., Ltd., has repeatedly communicated with Mcwell regarding the design drawings of the natural vent. Clients consulted some technical issues such as the predictive anti-leakage technology, how to ensure efficient ventilation and daylighting. Mcwell technical department provided practical and feasible improvement plans according to the needs, which was affirmed by the owner and the general contractor. won the first prize with its professionalism in smoke vents and strong research and development capabilities, and successfully won the bidding to become the supplier of Longteng's annual production capacity of 200,000 cubic meters of assembled PC component production base.