Padlocks are the oldest and largest family in the world of locks.
1. According to the unlocking method
(1) Top-opening padlock
(2) Open the padlock straight;
(3) Open the padlock horizontally;
(4) Beam padlock (also known as giant padlock);
(5) Password padlocks
2. Classified by material
(1) Stainless steel padlock: This type of padlock is characterized by
relatively strong oxidation resistance and is suitable for outdoor use.
(2) Brass padlock: The main material of the lock is brass.
(3) Iron padlock
①Plating iron padlock
②Gray iron padlock: the surface is treated with gray paint,
after which there are many colorful padlocks, all of which belong to this category;
③Imitation copper padlock: In fact, it is an electroplated iron padlock,
which means the surface is plated with copper;
(4) Zinc alloy padlock: This type of padlock is integrally formed by a die-casting
machine with high precision.
