Haiyan county, hangzhou city, zhejiang province China Square Head Wood Screw Manufacturers Square Head Wood Screw With Turning Suppliers
The Greek mathematician Alkutas once described the principle of screws, screws, and screws. In the first century AD, the Mediterranean world has begun...
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...
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...
Stud bolts generally need to undergo surface treatment. There are many types of bolt surface treatments. Generally, electroplating, blackening, oxidat...
The production of stud bolts requires fixed equipment and machine tool processing. Of course, the processing procedure is relatively simple. There are...
Stud bolts are manufactured in accordance with the GB897-GB901 standard. The materials used are: Q235, 45#, 40Cr, 35CrMoA, Q345D, the specifications a...