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 Spiral Pipe 

 Founded in 1996, Changzhou mounds located in the Bohai Sea Economic and Technological Development Zone, convenient transportation, developed communication, vast territory, have a good space for development, the total area of ??86,000 square meters, existing staff of 198 , including 28 senior professional titles, the total assets of 270 million yuan. 

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 Size of the company 

 Existing ф1140 level various models of pipe is widely used in oil, gas, natural gas, thermal power generation and other infrastructure projects. Company-ф381 in, straight seam welded pipe operating line ф219-ф2432 pairs of silk, double-sided submerged arc spiral pipe production line four, and under the Hebei Tian Hui anticorrosive processing plant, Hebei Tianhui paint factory, Hebei Hui Steel Pipe expansion of the system plant Tianhui seamless steel pipe factory with an annual output of various specifications, model steel pipe 380,000 tons, 1.2 billion yuan of output value, the company has introduced advanced Lincoln automatic welding equipment, advanced German steel production equipment, high technology, technology and other advanced features, according to oil industry standards, national standards, the American Petroleum Institute API 
 Spec 5L Standard, the production of Q235, Q345, X42-X7 

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 Company's products 

 Spiral steel pipe of the company are widely used in various fields of national economy: 
 An oil, gas and coal industry is one of the main users of the company, has become the indispensable material of conveying water, oil, gas coal and other substances. Has huge economic benefits of pipeline transportation and pipeline construction investment is less than 1/3 of 1/2, freight only railway of the railway, saving manpower, material and financial resources, but also shorten the construction period, a large transmission capacity, easy to use, safe reliable. 
 2, in the construction industry, spiral steel pipe, steel piles and components used in bridges, factories, harbors, culvert pipe and equipment foundations. 
 3, in agriculture for farmland irrigation and drainage tube borehole wall and ducted through the water pipe. 
 4, in the industrial and communications enterprises for general fluid transportation, gas, production of low pressure vessel, storage tanks, tea stove, chimney and structural pipe. 
 5, can also be used for solid conveying, such as ash, coal powder, slag. 

 The all SY/T5037-2000 GB/T9711.1-1997 standard and APISpec5L standard production φ219-φ2320, Q235, Q345, 10 # steel, 20 # steel, 16Mn, L245, L290, of L360, X42-of X70 steel class different thickness of the "Tian Hui" brand spiral submerged arc welded steel pipe. The products are widely used in natural gas, petroleum, chemicals, electricity, heating, drainage, steam heating, hydropower pressure steel pipe, thermal power, water and other long-distance pipelines and piling, bridges, steel structures and other engineering fields. The company also Chair of the well-known engineers in the industry five Jinxi Petroleum Steel Pipe Plant and Baoji Petroleum Steel Pipe Plant to ensure the quality of the product. Based on the quality, the full implementation of quality management. Through the ISO9002 quality management system certification in 2001 and in May 2003 passed the ISO9001-2000 quality management system certification and quality to win the trust of customers to meet the market, technology product that is character, integrity is life. Customer satisfaction is our eternal pursuit. The company is committed to: the same quality steel, steel prices the lowest. 

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