Main Structure: Generally, 7000 series (e.g., 7075-T6) or 6000 series (e.g., 6061-T6) aluminum alloys are used. The former has extremely high strength, approaching that of ordinary steel; the latter has excellent comprehensive performance, is corrosion-resistant, and easy to process.
Key Load-Bearing Components: Gears, drive shafts, hooks, etc., still use alloy structural steel to ensure key mechanical properties and wear resistance. This reflects the engineering design concept of "the right material for the right part."
