Qingdao Qiangli Steel Structure Co. Ltd, found in 1998, is engaged in all kinds of steel structure engineering design, manufacture, and installation, which provide one-stop service to clients as a large-scale specialized enterprise. We are qualified as Qingdao High Technology Enterprise and Vice President Enterprise of Jiaozhou Steel Structure Association. We own GB/T 19001-2008/ ISO 9001:2008 Quality Management System Certification, GB/T 24001-2004 idt ISO 14001:2004 Environment Management System Certification, GB/T 28001-2011/ OHSAS 18001:2007 Occupational Health and Safety Management System Certification; we have National Industrial Production Manufacturing Qualification of 750kV transmission line tower, National Industrial Production Manufacturing Qualification of Television and Telecom Tower(All Series), Qualification of Steel Structure Installation LEVEL II, Hot-Dip Galvanizing Certificate, 100kV High-Volt Steel Tubular  Tower Qualification, 500kV Substation Steel Structure Qualification, 220kV Tubular/Pipe Pole Qualification; We are qualified supplier of State Grid for AC1000kV Uhv transmission line tubular tower, DC800kV Uhv transmission steel tower, 10~750kV steel tower, 10~1000kV steel tube tower, 10~220kV steel pole, 10~500kV substation steel structure; we are suppliers of China Tower Company in multiple Provinces, we hold rights to export. Over the years, Qiangli Co. adhering to the quality policy “produce high-quality products, ensure customers’ satisfaction’, Which simultaneously stress quality and service. With the help of extensive experiences, Qiangli Co. Obtained exquisite technologies, accumulated experiences, and developed a strong team. Qiangli Co. won the trust from customers with high quality productions, perfect services, and innovative spirits.     

  Our company’s main productions include: power transmission towers, microwave communication towers, radio & television towers, flare & torch towers, wind tower, decoration towers, power plants, substations steel structure, civil architecture steel structure, railway steel structure, etc. all types of towers and steel structure. Our productions sold to domestic market in whole region of China and export to Asia, Africa, America, Middle East etc., which more than 20 countries.

  Our company located in Jiao Zhou City Shandong Province, next to the yellow sea and Jiao Zhou bay. There are two adjacent highways (Jiqing Highway and Shenhai Highway) and Qingdao port near here which provide substantial conveniences for cargo transportations. Total area of company is 173,000 square meters, the building area of manufacturing is 73,000 square meters. There are 597 staff in whole area, including 120 technicians. The annual manufacturing capacity is 100,000 tons. We owns many advanced and fully-automatic equipment include: CNC Angle iron production line and CNC sheet production line, CNC steel flange and pipe connect plate assembly welding production lines, CNC flame cutting machine, CNC plasma cutting machine, CNC plane drilling machine, CNC hydraulic bending machine, the curve of CNC cutting machine, large shears, groove machine, slotting machine, automatic submerged arc welding machine, completed assembly models of steel pipe; 14.5m * 2.2m * 3m facilities for hot galvanizing production, gas-power constant temperature control system, ensure the quality of galvanized products; Large general vertical assembly platform and 6 tons of tower crane, meet the requirements of test installation of all types of towers; Perfect physical and chemical experimental instruments and facilities, ultrasonic testing, X-ray flaw detection equipment, make production’s quality easy and effective to control.

  We will regard customers as the center, unity cooperation, honest and trustworthy, pioneering innovation, and perseverance as the enterprise's core values; achieving values for customers, creating opportunities for employees, attentively complete each project, do contributions for the prosperity of our city and country is Qiangli Co’s corporate mission; sustainably develop to become the most customer trust, social respect, and staff cohesion enterprise, is Qiangli Co.’s corporate vision.