Hardened steel forging rod head: highly heat steel forging highly hardnessed, good toughness, highly torqued Electroplating technology: polishing to maintain original hardnessed is not easy rusted resistance For Furniture RepairDIY ModificationAutomotive RepairIndustrial ManufacturingAppliance RepairMachine Repair highly-frequency weldings: highly-frequency weldings refuses to manual weldings long service life highly hardnessed and durability: highly-frequency quenching, hardnessed up to HRC55, not easy to be deformed, Manufacturer: Uqezagpa