Lontrin was established in 2003, whose headquarter is located in the city of Yangzhou, China.The annual production capacity of seamless steel pipe is 700,000 tonnes, and the full size of the product group covers diameter Φ19-Φ1498mm, wall thickness 2-150mm. The products cover: line pipe (steel grade up to X100); low temperature pipe (minus 75℃); offshore pipe (grade X80); carbon, alloy and high alloy refinery pipe; carbon, alloy and high alloy ultra-supercritical power plant pipe; subsea pipe (X80); nuclear power pipe; stainless steel, which are widely used in oil and gas, ultra-supercritical thermal power, nuclear power, offshore, energy, machinery manufacturing and so on.