Sequential Intelligence is the first provider of force feedback solutions with completely independent intellectual property rights in China. It has the self-developed technology at the bottom of the full stack of force feedback schemes. HFD-6, the first multi-degree of freedom force feedback device based on self-developed technology, has been certified by EU CE and Japan PSE standards. Based on HFD-6 force feedback device, the remote teleoperation scheme of manipulator has been applied in many universities, scientific research institutions and enterprises, such as Central South University. HFD-6, a spatial force sensing manipulator for training data acquisition of arm trajectory of embodied intelligent robots, has successfully entered the list of the first batch of artificial intelligence terminal products published by Guangdong Province.