1 with a dry soft cloth gently wipe, do not use chemical cleaning agents or acidic liquid cleaning, such as the surface is found to be difficult to remove the black spots, a little kerosene can be used to wipe;
2 the use of a long time to issue a sound is a normal phenomenon, in order to ensure the smooth and smooth pulley mute, every 2-3 months can be a regular point of lubrication maintenance.
3 should prevent sharp drop, scratch and weight.
4 avoid in handling shenglayingzhuai, damaged furniture hardware connections.