In the last passage, the author introduce
four kind of cat eye road studs: cast aluminum cat eye road studs, ceramic cat eye road studs, glass ball cat eye road studs, and reflective bead cat eye road studs. I am going to introduce other 3 for you.
5. Plastic cat eye road studs
Plastic
cat eye road studs is also divided into all plastic and plastic shell two kinds. All plastic refers to that the shell is all plastic injection molding, and the material may be ABS, AS + glass fiber, etc. All plastic cat eye road studs has high compressive strength. Plastic shell refers to that the shell is plastic and the interior is filler. The cost of such cat eye road stud is lower than all plastic, but the pressure resistance is also lower. It is generally called plastic cat eye road stud or plastic filled cat eye road stude.
6. Railway cat eye road studs
Railway cat eye road studs are divided into manual and machine-made products. The former are hand-made so that its shape and size are on various level. The advantage of it is low price and it is usually sold by ton. The machine-made cat eye road stud is made by machine through forging, heat treatment, threading and other processes. It is the best choice regardless of its shape, size and usability. However, the price is slightly higher, and the goods are generally sold by individual.
7. Mine cat eye road studs
There are seven kinds of
cat eye road studs are introduced. Each one has its advantage and disadvantage. Some are discarded by human with the development of technology. The sci-tech development will never stop, and all we should do is following steps of era.
