What is the material of the slide rail used on the machine?
Plastic pulley, steel ball and wear-resistant nylon are the most common three kinds of pulley materials, among them, wear-resistant nylon is the top grade, and it is quiet when sliding. Look at the quality of the pulley, you can use one finger to push and pull the drawer, there should be no sense of astringent, no noise.
The quality of the pulley determines the comfort of the drawer when it slides.
