Plating parts can reduce their rust-preventing performance over time. Because there are many tiny holes on the plating surface, when the plating surface is eroded by water, moisture will penetrate through these tiny holes, causing the metal under the plating to rust. Since the rust layer is sandwiched between the metal and the plating layer, plating will cause electroplating. Spalling, slitting. For galvanized parts of plastic products, there is no possibility of rust, so during maintenance, wipe it gently with a damp cloth. However, the bonding ability between the electroplating layer and the plastic is poor, so do not use too much force during wiping so as not to cause the electroplated layer to peel off.

There are many devices on high-grade cars that are packaged or made of leather. When cleaning these leather products, wipe the dirt off the leather with a damp cloth. However, do not make the leather too wet during wiping so as not to allow water to penetrate the joint along the joint. After scrubbing with a detergent, dry it with a dry soft cloth or towel, then open the door, let the air circulate, and thoroughly dry the moisture on the leather.

5.1 Pulley

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