Hebei Senhai Pipeline Co., Ltd. which is the most professional manufacturer and exporter of steel pipes and pipe fittings in China is located at Cangzhou, the historical well-known city which now is part of Bohai Economic Development Zone, 120km away from Tianjin port and airport, 20km away from Bijing-Shanghai Railway and Beijing-Shanghai Highway. Since being adjacent to the high-speed railways, the journey time to such transportation centers as Tianjin, Beijing and Shanghai are extremely short, for example, it is only half an hour to Tianjin by taking the high-speed railway, only an hour to Beijing, four hours to Shanghai, the accessibility is very easy.