Good quality hinges are generally made of high-quality zinc alloy and high-quality steel plate, and springs are made of high-strength steel wire.

Quick loading locking mechanism

The quick-loading locking mechanism is made of high-quality metal and is not easy to be damaged.

Fine forging

Good alloy hinge front cover and base are thick, finely forged, smooth and burr-free, and have high strength.

Recyclable and reusable

Good steel plate stamping hinge, thick plate and high strength. Some steel products are 65,438+0,000% recyclable, and the surface is treated with oxidation resistance. The handover test has passed more than 65,438+million times.

Inferior material

Poor hinges generally use wrought iron sheets with average strength, while steel wires for springs have poor strength and are easy to break. The hinge forging of zinc alloy is rough and thin, with poor strength. The quick-loading locking mechanism is made of hard plastic and a small amount of zinc alloy.