The HFS technology of M-Ji Company is: using the special hydraulic forming technology of hydraulic homing system (HFS is short for hydraulic homing system), using HFS technology, M-Ji carved beautiful 3D solid lines on the aluminum alloy frame tube, which reduced the weight of the frame to an incredible degree, while maintaining the ultra-high rigid strength of the M-Ji frame.
The biggest difference between TFS technology and HFS technology is: how is the pipe made into a prism? HFS is formed by injecting liquid from the inside, while TFS technology is used to make the 3D shape of pipe fittings, so the frame processed by TFS technology is not as good as the frame processed by HFS technology in weight, strength and stiffness.
I hope it helps you!