D30 four damping holes banded Shock Pistons with high Tensile strength

 

D30 piston assembly

 

Here is the physical properties of our products:
Tensile strength	≥23N/mm2
Carrying capacity	≥15N/mm3
Working temperature	-80°C to 260°C
Friction coefficient(dry)	≤0.16μ
Friction coefficient(oil)	≤0.05μ