Haiyan county, hangzhou city, zhejiang province China Square Head Wood Screw Manufacturers Square Head Wood Screw With Turning Suppliers
species 1) Slotted ordinary screws Mostly used for the connection of smaller parts. It has pan head screws, cylindrical head screws, hex flange concre...
Standards are norms, and each country and department has its own standards. GB—Chinese National Standard (National Standard) ANSI—American National St...
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...
No. 3 Jincheng No. 2 Road, Qinshan Industrial Park, Haiyan County