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The Heat-Affected Zone (HAZ) is one of the most critical aspects of welding metallurgy. It's the area of base metal that is not melted but has undergone significant changes in its microstructure due to exposure to high temperatures during welding. The HAZ can affect the me ---MORE---... We are blog of Teak Wood,Engineered Wood Beams,Building Hardware Supplies in China, if you want to buy Teak Wood,Engineered Wood Beams,Building Hardware Supplies, please contact us.