The main function of the Anchor bolts is to firmly fix the equipment on the concrete foundation to ensure the stability and safety of the equipment. ‌ They are usually used in railways, highways, power enterprises, factories, mines, Bridges, tower cranes, long-span steel structures and large buildings and other infrastructure, with strong stability. The types of Anchor bolts include fixed anchor bolts and movable Anchor bolts, the former is poured together with the foundation for fixing the equipment without strong vibration and impact; The latter is removable and is used to fix heavy machinery with strong vibration and shock