★ Strong Surface Treatment

JIASHENG has electronic deposition coating comparable to the OE level to prevent rust from reducing durability.

★ Plastic Seat

JIASHENG uses a plastic ball seat. Low friction damage and low variation in torque and clearance can keep performance long.

★ Hard & Soft Ball Stud

JIASHENG reduces the surface roughness of the ball through the burnishing process, making the ball smooth.