DTFLock has always been a supporter of high-quality life. After more than ten years of development, it has become a nut, thread tool (tap, gauge), tapping equipment and the core of the technology. A comprehensive range of R&D and production capabilities for testing instruments, including companies. It is a world leader in the fields of application, manufacturing, testing and threading technology of Spiking® anti-loosening products. We produce and sell the world, the global marketing network, providing customers with convenient services.