custom D25 PTFE Banded Piston use in Shock absorber parts with 25kgf/mm2 Crushing strength

The detail information of the pistons:        
1.Size: ø25, used in front shock absorber        
2.Draft angle of the valve line is 30 degree        
3. No scratch and burr around PTFE        
4.Density with oil ≥6.4g/cm3        
5.Crushing strength >25kgf/mm2        
"6.Relative density of PTFE is 2.14 /-0.05g/cm3
"        
7.Strict quality control observed        
8.Minimum order:negotiable        
9.PTFE lined piston ring        
10.Multi-level powdered metal components on iron, stainless and copper base        
        
        
Shock absorber parts, including guider, piston, valve seat        
Advantages:        
"1.Complex multi-level design
"        
2.Excellent quality and unparalleled service         
3.Close tolerance and high strength        
        
        
According to the standard of QC/T545-1999 to test the using life of piston,         
wearing capacity less than 0.03mm after 5, 000, 000 cycles test.