The specific method for using a brass padlock will depend on the type of lock, but here are some general steps to follow:

Keyed padlock: To open a keyed brass padlock, insert the key into the lock and turn it to unlock. To lock, close the shackle and turn the key to secure.

Combination padlock: To open a combination brass padlock, set the combination by turning the dials to the desired combination, and then pull the shackle to unlock. To lock, close the shackle and set the combination to secure.

Changing the combination: To change the combination on a combination brass padlock, follow the manufacturer's instructions, which typically involve resetting the combination by opening the lock, removing the reset tool, and setting the new combination.

Locking and unlocking: When locking or unlocking a brass padlock, be careful not to apply too much force, as this can damage the lock or make it difficult to open.

Maintenance: To keep your brass padlock in good working order, clean it regularly with a dry cloth, and store it in a dry place when not in use to prevent rust and corrosion.

It is important to follow the China Brass Padlocks Manufacturers instructions for using and maintaining your brass padlock, and to choose the right size and style of lock for your specific needs.