Recently, Mcwell and Liaoning Zhongwang Automobile Co., Ltd. signed a construction project for the construction of a lightweight special-purpose vehicle trunk production base of the installation of natural ventilator on the roof of the No. 234 Plant, Mcwell has a good brand reputation in the Northeast area. Bochuan Heavy Industry and Zhongwang Aluminum also chose Mcwell as supplier.

Liaoning Zhongwang Automobile Co., Ltd. was established on January 27, 2016. It is mainly engaged in the manufacturing, sales, maintenance, research and development, manufacturing and sales of aluminum alloy products of fire trucks and auto parts; The installation project of the roof vents of the 234th factory is the construction of the car trunk workshop. This contract uses the 11CJ33 "Daylighting Natural Ventilator" edited by Mcwell. The 1.2-meter throat arched continuous rooflight and the 6-meter throat ridge ventilator are selected for this contract. The ventilation effect of 1.2m is worser than that 6m throat. It is used with a 6m throat natural vent, the ventilation effect is good. The arc-shaped natural ventilator has an arc-shaped structure, with large volume and good ventilation. It is composed of the main frame, sub-frame, profiled color steel plate, FRP lighting board and steel structure frame and other accessories. The frame and throat is welded with basic section steel to form a whole with the roof. The end plates at both ends are made of color steel profiled plates, and the flooding edging board is made of color steel plates. FRP daylighting board selected for daylighting board. The natural roof ventilation integrates the functions of light board, smoke exhaust and ventilation. It has been widely used in various industries such as electric power, metallurgy, chemical industry, etc.