High strength, suitable for transition, interference fit. The holding keys and shafts, bearings, motor rotor shaft, bushing. Increase the strength of pressure. Repair worn holes in a shaft with a piece or a super poor part. The most ideal radial filling gap is below 0.13MM, and the shear strength of 21MPa can be provided after 24 hours. Parts can be easily combined with different metal materials, can withstand the temperature to 149 degrees.