What are the characteristics of materials commonly used in t
Materials for manufacturing photovoltaic stand equipment are different from other equipment products to effectively prevent the equipment from being corroded. Therefore, three kinds of concr
Where are the threads of high strength hexagonal bolts mainl
High strength hexagonal bolt is a kind of bolt which is widely used. Class A and Class B high-strength hexagonal bolts are used for important assembly accuracy requirements, as well as place
What is the length deviation of the fine rolled nut?
The steel bar can be rolled and delivered. Each plate should be a steel bar. It is allowed to have 5 % of the number of discs per batch(less than two plates can be used) consisting of two st
How to distinguish between high-strength bolt nuts and commo
There are generally two ways to distinguish between high-strength bolt nuts and ordinary bolt nuts: one is to hit hardness, and the other is to read warranty. If there is no warranty, it is