The American Iron and Steel Institute (AISI) is a non-profit trade association that represents the North American steel industry. It was founded in 1908 and is headquartered in Washington, D.C. The AISI’s mission is to promote and advocate for the steel industry in North America, through research, education, and public Continue Reading

Can not be changed at will In the process of tightening and dismounting the bolts of excavator accessories, the specified bolt torque requirements for many areas of components such as gearboxes, cylinders, hubs, connecting rods and front axles have special instructions for the tightening torque and cannot be changed at Continue Reading