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Grade 12.9 high-strength bolts ensure exceptional quality at every stage, starting from the material source.

Our core advantages:
• Premium materials: We use high-quality 40CrNiMoA steel (fully compliant with the AISI4340 standard) to guarantee fundamental performance.
• Advanced processes: Our intelligent medium-frequency quenching and tempering production line ensures uniform hardness along the entire length of bolts up to 16 meters long.
• Outstanding performance: With a thin oxide layer, minimal deformation, and a dense crystal structure, the fatigue life is significantly extended.
• High production capacity: Our six automated production lines can produce 6 tons per hour, meeting the requirements of large-scale projects.
Moreover, we offer the flexibility to combine raw materials and heat treatment according to your specific needs! Our technical department provides free samples! Our solutions are more precise, efficient, cost - effective, and reliable! What special challenges does your project face? Do you need to deal with extreme climates or meet special certification standards? Feel free to share your project requirements in the comment section. We will offer professional advice and provide a professional quotation! #WindTurbineAnchorBolts #DoubleHeadBolts #PowerTowerBaseBolts #HeavyDutyEngineeringBolts #QuenchingAndTempering #IndustrialBoltManufacturing #HighStrengthBoltsUSA #WindEnergyInfrastructure #Heattreatment #Roundsteel #Alloysteel #High-strengthbolts #Manufacturerofhot-rolledroundreinforcedsteelbars #Manufacturerofhigh-strengthsteelbars #40CrNiMoA #4340 #PLCforsteelstructures #Largeroundsteel #Grade12.9windturbinebladebolts #Constructionmachinerybolts