MSB550 Inner bush,front cover for hydraulic breaker

Inner bush means upper bush ;Outer bush means front cover, lower bush

With 3 kinds of  raw material, 20crmo,42crmo,40cr.

20crmo is the high quality for inner bush, the probability of broken near 0%.

Each process of produce all checked one by one.With Good machine and professional engineer.

Always export to Korean, Oman,Saudi,Iraq,Iran,India,Egypt,Libya...

High quality with Chiese price.