Chuangyuanfang has the strongest strength, relying on Tangshan Iron and Steel, which can be said to be the boss of Tangshan, west of Long Ze Road in Diaoyutai; Shield stone electric relies on Jidong cement, which can be comparable to Chuangyuan, in Daqing Road, Development Zone; Tangshan Hualong is the unit with the largest number of box-type substations in Tangshan, on the auspicious road; The above three can be said to be very important in the industry.