• Pre painted galvanized steel coil PPGI News

    Color coated roll is hot galvanized sheet, hot aluminized zinc sheet, galvanized sheet as the substrate, after surface pretreatment (chemical degreasing and chemical conversion treatment), coated with a layer or several layers of organic coating on the surface, and then baked and cured products.A...
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  • Lead sheet News

    Lead sheet News

    Lead plate profile: Lead plate refers to the use of metallic lead rolling plate, in radiation protection industry, lead plate, also known as anti-radiation lead plate, radiation protection lead plate, lead plate also can be used in industrial inspection, acid corrosion resistance, sound insulatio...
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  • Galvanized steel sheet News

    1,market situation: In recent years, China’s galvanized sheet production increased year by year, and the import volume is also growing year by year, the growth rate is even higher than the growth rate of production;After deducting production duplicate statistics, galvanized sheet consumptio...
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  • Seamless tube production history

    Seamless tube production history

    In the 1960s due to the invention of a new three-high diagonal mill (known as the Transval mill), this methods have developed rapidly.The new mill is characterized by rapid rotation of the inlet to the rear the turning rack comes to change the rolling Angle, thereby preventing the tail from formi...
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  • Seamless pipe classification

    Seamless pipe classification

    1. Classification by production method (1) Seamless pipe — hot rolled pipe, cold rolled pipe, cold drawn pipe, extrusion pipe, pipe jacking (2) Welded pipe (a) According to the process — arc welding pipe, resistance welding pipe (high frequency, low frequency), gas welding pipe, furna...
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  • Introduction to Seamless pipe

    Introduction to Seamless pipe

    Seamless square pipe is a kind of long steel with hollow section and no joints around it.Steel pipe with hollow section is widely used for conveying fluid, such as conveying oil, natural gas, gas, water and some solid materials.Compared with round steel and other solid steel, steel tube is a kind...
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