The following small make up for you to introduce how to use the naked eye can distinguish the good or bad suspension single hydraulic prop.
1. Oil cylinder skin: after heat treatment, the skin has oxidized layer, which will turn black. Even after painting, there will be a light black surface.
2. Living column surface: the surface treatment of suspension single hydraulic prop adopts ni-p-b electroless plating technology with smooth and round surface. If the surface is very rough after electroless plating, it indicates that magnesium plating, zinc plating, chrome plating or others are not resistant to decay and wear, and the cost is very low.
