Company news

  • Post time: 11-12-2019

    According to data released by the General Administration of Customs on November 8, China imported 25.685 million tons of coal in October, an increase of 2.606 million tons, an increase of 11.29%; a decrease of 4.603 million tons, down 15.20%. From January to October, China imported a total of 2,7...Read more »

  • Post time: 10-29-2019

    1,the outer diameter of tolerance ERW steel pipe, is made of cold bending forming, by reducing 0.6% complete sizing, the basic technological process temperature constant at room temperature, and outside diameter control accuracy and small range, which is conducive to eliminate black buckle; Seaml...Read more »

  • Post time: 10-16-2019

    OCTG corrosion situation of oil, casing, gathering pipeline and storage tank corrosion is mainly oil and gas well output, shallow water, such as injection fluid corrosion, the main media such as H2S, CO2, dissolved oxygen and SRB.Tend to drill the role of many of the media, including drilling, pi...Read more »

  • Post time: 10-10-2019

    Hot galvanized is at a high temperature to melt the zinc in put some supplementary material, then dipped galvanizing bath metal structure so attached to a layer of zinc coating on the metal components. Hot galvanized has the advantage of his ant-corrosion ability, zinc coating adhesion and hardne...Read more »

  • Post time: 09-26-2019

    Three-layer PE/PP coating is characterized by excellent corrosion-proof performance, insulatibity, relatively long service life and mechanical damage resistance. It is widely used in coating for all kinds of major, pipeline engineering. 3PP preservation: PP three-tier structure of anti-corrosion ...Read more »

  • Post time: 09-18-2019

    In the oil and gas pipeline corrosion in the construction process, DSAW steel pipe anti-corrosion surface treatment is to determine the life of one of the key factors, it is ERW steel pipe coating with the premise of whether the combined firm. The study of professional organizations, in addition ...Read more »

  • Post time: 09-10-2019

    There are some customer don’t know how to distinguish the seamless stainless steel pipe and ERW stainless steel pipe. Today, Great Steel Pipe will discuss about differences between seamless stainless pipe and ERW stainless steel pipe. What is the raw material required for manufacturing seam...Read more »

  • Post time: 09-04-2019

    We all know that steel is two elements mixed together: iron and carbon, and the more carbon there is contained in the steel, the stronger it gets when heated. Carbon steel pipe is a steel alloy that contains carbon ranging from 0.12% all  the way to 2%. The percentage of alloy in carbon steel aff...Read more »

  • Post time: 08-28-2019

    Under the welded pipe from the top of the arc, from top to bottom all-position welding technique, the method of welding speed, weld appearance, good welding quality. you can save welding materials, reduce labor intensity, which is a common SMAW can not be compared and now more widely used in larg...Read more »

1234 Next > >> Page 1 / 4
WhatsApp Online Chat !