Automobile wheel studs are generally made of high-strength steel. The strength grade of the screw is printed on the head of the wheel bolts, including 8.8, 10.9 and 12.9. The higher the value, the higher the strength.
There are two ways to install single head bolts. One is hub bolts + wheel nuts. The bolts are fixed on the hub with an interference fit, and then the wheels are fixed by nuts. Generally, Japanese and Korean cars are widely used, and the vast majority of t
The Rainbow inflatable bouncer house is a combination of many colors, it has a very beautiful appearance, you can add colored lights in the bouncer, it is suitable for party, people will love it.
Magnetic Writing Board provides a unique tactile drawing experience; Helping children to learn and write the alphabets correctly and happily and also help kids to drawing pattern with different colorful disks.