13 Years Manufacturer Carbon Steel for El Salvador Factories
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13 Years Manufacturer Carbon Steel for El Salvador Factories, The product will supply to all over the world, such as: , , ,
4140 is a widely used medium carbon steel. A general purpose alloy, has good strength, toughness and hardness. Refered to as chromoly steel, due to the inclusion of .95% chromium and .20% molybdenum alloying elements. https://www.vssteelbars.com/ keyinuo8@gmail.com Wechat：15617883392
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