• Do you know the history of screws, screws, and screws?

    Do you know the history of screws, screws, and screws?

    The Greek mathematician Alkutas once described the principle of screws, screws, and screws. In the first century AD, the Mediterranean world has begun...

    14-12-2020 News
  • How much do you know about the detailed overview of screws?

    How much do you know about the detailed overview of screws?

    Screw refers to a screw, which is a tool that uses the physics and mathematics principles of the oblique circular rotation of the object and the frict...

    07-12-2020 News
  • Basic introduction to bolts?

    Basic introduction to bolts?

    Bolts specifically refer to screws with larger diameters, and can also have no heads, such as stud bolts. Generally, it is not called a "stud bolt" bu...

    30-11-2020 News
  • How to deal with the surface of the bolt?

    How to deal with the surface of the bolt?

    Stud bolts generally need to undergo surface treatment. There are many types of bolt surface treatments. Generally, electroplating, blackening, oxidat...

    23-11-2020 News
  • Basic knowledge and maintenance about bolts?

    Basic knowledge and maintenance about bolts?

    The production of stud bolts requires fixed equipment and machine tool processing. Of course, the processing procedure is relatively simple. There are...

    16-11-2020 News
  • Basic knowledge about bolts?

    Basic knowledge about bolts?

    Stud bolts are manufactured in accordance with the GB897-GB901 standard. The materials used are: Q235, 45#, 40Cr, 35CrMoA, Q345D, the specifications a...

    09-11-2020 News