Upgrade: FG003 and FG004 will use a new hinged skeleton

003 and 004 will use a new hinged skeleton, which has the following advantages:
‌Flexibility and adjustability‌: The hinge design allows the various parts of the frame to be flexibly connected and adjusted to adapt to different postures and movement requirements, providing a more realistic experience‌.
Structural stability and durability‌: The hinged frame is made of stainless steel, which has high strength and durability and can withstand greater forces and long-term use without being easily damaged‌.
‌Maintenance and care‌: Metal frames are relatively easy to clean and maintain, and are easier to repair after damage, extending their service life‌.
‌Safety and environmental protection‌: Metal frames usually use safe materials such as stainless steel, which are non-toxic and harmless and meet environmental protection requirements‌.