is a state-owned enterprise.

according to enterprise data, Zhangjiakou Heli Construction Service Co., Ltd. was established on March 29, 2117, and its business scope includes property services. Housing construction engineering, municipal engineering, waterproof, anticorrosion and thermal insulation engineering, landscaping engineering, indoor and outdoor decoration engineering, water supply and drainage engineering, heating and ventilation engineering, pipeline installation engineering, house repair engineering, landscaping engineering, fire control facilities engineering, highway engineering, electromechanical equipment installation engineering, lighting engineering, municipal road engineering, building curtain wall engineering construction, general contracting, building cleaning service, cleaning service, catering service, accommodation service and self-owned house rental service. Self-owned venue leasing services, parking lot management services, information consulting services (excluding licensing information consulting), construction engineering labor subcontracting services (excluding labor dispatch), heating management, building materials and seedling sales. (Projects subject to approval according to law can only be operated after approval by relevant departments)