Transpeed U660e U660 Automatic Transmission Nak Piston Kit 5 Pcs/set for Toyota Car Accessories

Transpeed. Have enough strength, stiffness, small mass and light weight to ensure the minimum inertial force. Good thermal conductivity, high temperature resistance, high pressure, corrosion resistance, sufficient heat dissipation capacity, and small heating area. There should be a small friction coefficient between the piston and the piston wall. When the temperature changes, the size and shape change should be small, and the minimum gap should be maintained with the cylinder wall. The thermal expansion coefficient is small, the specific gravity is small, and it has good wear reduction and thermal strength. Feature: Have enough strength, stiffness, small mass and light weight to ensure the minimum inertial force. Good thermal conductivity, high temperature resistance, high pressure, corrosion resistance, sufficient heat dissipation capacity, and small heating area. There should be a small friction coefficient between the piston and the piston wall. When the temperature changes, the si