The common hinges in home improvement are generally made of brass and stainless steel. The yellower the brass hinge, the better the copper content. Inferior quality hinges are thinner because they cut corners and do not meet the specifications and thickness. You can open and close several times to try its flexibility and firmness when purchasing.

K15-nylon hinge

Using PA material

Lightweight, oil resistant, angle 180 °

Uses: instrument box, power distribution cabinet, mechanical doors and windows, etc.