Padlocks can be divided by material

1. Stainless steel padlock: This type of padlock is characterized by relatively strong oxidation resistance and is suitable for outdoor use, but due to the difficulty of processing and high cost, it is less used in China.

2. Copper padlock: The main material of the lock is copper. The most commonly used ones are small copper padlocks, that is, the size below 40mm, mainly because the price of copper is relatively high.

3. Iron padlock: It is very common.

A. Electroplated iron padlock: table

B. Gray iron padlock: The surface is treated with gray paint, after which there are many colorful padlocks, all of which belong to this category.

C. Imitation copper padlock: in fact it is an electroplated iron padlock, which refers to the copper-plated surface

4. Zinc alloy padlock: This type of padlock is integrally formed by a die-casting machine with high precision.