An Gang Steel Group Engineering Technology Co., Ltd., after preliminary screening, identified Mcwell as a shortlisted manufacturer for bidding. An Gang Steel Group visited and inspected Mcwell's factory. Mcwell is the editor-in-chief unit of 11CJ33 "Daylighting Natural Ventilator" with strong technical strength and with a complete after-sales service team, An Gang steel Group Engineering Technology Company finally decided to deliver the 4m throat smoke ventilator with a total quantity of more than 1,000 meters to Mcwell for production and installation. The customer's recognition is the trust in our company.