Chongsheng is a company specializing in producing various seamless steel pipes. It is located in Cangzhou,a famous historical city bordering Jinan in the south and Beijing and Tianjin in the north,enjoying a favorable geographical location and easily accessible with many railways and highways running through Cangzhou from north to south ,such as Beijing-Tianjin Express Railway,Beijing-Shanghai Railway,Beijing-Fuzzhou Expressway,and No.104 and 307 National highway. The main production equipments of company include:aφ180 automatic pipe rolling line,3 sets of hot rolling-piercing mills,16 interactive double-rod cold-drawing machines and a number of automatic rotary pointer,straightening machines,water-free annealing furnacesand auxiliary production equipments for surface acid pickling and coating etc. Its physical and chemical labs can conduct various physical and chemical tests and experiments for steel pipes,and are equipped with eddy current flaw detectors,leakage fault detection and ultrasonic crack detectors etc. for high,medium and low pressure seamless steel pipes and petroleum casing pipes with a full its main products include8 series:seamless steel pipes for use in low and medium pressure boilers,petroleum casing pipes,ships,fluid conveyance,petroleum cracking,chemical fertilizer equipments,structures,and hollowpumping rods.It can produce seamless steel pipes according to the standards such as GB ASTM API 5L API 5CT DIN and JIS.Its products have been sold around China and exported to over dozens of countries and regions in the world such as Southeast Asia,the Middle East, Europe and America etc., enjoying the very high prestige in the domestic and foreign markets. Our company also has elbow,tee and reducer production lines and advanced processes for cold forming,hot extrusion,machine processing,forging,stamping and heat treatment etc. It can various low-pressure,medium-pressure and high-pressure industrial pipe fittings that are made fo carbon steel,alloy steel and stainless steel such as elbows,flanges,tees,pipe caps,large-size elbows,reducers and socket joints etc.It boasts a full range of inspection equipments and test methods and a strong technical force. For many years,our company has always insisted on the operation concept of "quality first and continuous improvement",and has provided a large amount of high-quality products to its vustomers at home and abroad in the industries such as electric power,chemical,perochemical,pharmaceutical,boiler,heating and shipbuilding etc.In addition,we can develop new products according to customers’requirements. Our company always insists on survival by quality and has constantly made innovation in management and technology,and we have established a sound scientific management and quality assurance system