Cangzhou Oukai Co.,ltd at NO.92 JieFang East Road,Cangzhou city, is a joint-stock corporation established in 1994.The company is large-sized second-grade enterprise and key matallurgic enterprise of Hebei province.It occupies 160,000 square meters with total assets of 230 million RMB yuan.There are 480 employees and 10% of them have kinds of cetificates.Its annual output is 200,000 tons of spiral steel pipe and the output value is 660 million every year. The company has six sets of production lines .The product is double-faced submerged-arc welded pipes.Now the diameter of our product is from 219mm to 3200mm with wall thickness from 5mm to 30mm.The brand of product is ��UZHOU��Our product comply with the standard of SY/T5037-2000,GB/T9711.1-1997 and API SPEC 5L,the material can be Q235AB,16Mn and X42-X70 grade plate.The products are widely used in the long-distance transmitting pipelines of natural gas,petroleum,chemical industry,power,heat power and water source etc. We build our factory on quality,carry out the quality management in all company,passed through ISO9001 Quality System Certification oin 2000.The product is strictly tested in all process from contract signing,raw material purchasing,producing,and inspection and after sale service,and passed through the termly inspection of Cangzhou Municipal Technology Supervision Bureau ans Hebei Provincial Technology Supervision Bureau the propertied of the product aomplies with the standard.We ensure to supply good product and service for the customer. So many years,the company put the customer first,establishes pre-sale,on-sale and after-sale service standard so that can completely satisfy the demand of the customer in all process.Our product gain trust from customer and we establish long-time mutual benfit cooperation with customer.Our company was awarded��en excellent enterprise��y the state of Cangzhou and Hebei province;��00 national enterprise with good reoutation in contract