U-in - user
- U-ing
- U-ing machine
- U-ing press
- U-iron
- U-joint
- U-link conveyor
- U-profile butt weld
- U-ring
- U-shape
- U-shape with parallel legs
- U-shaped
- U-shaped rail
- U-shaped tube
- U-tube pressure gauge
- U-weld
- u.d.c.
- U.T.
- ul-type casing
- ulterior
- ultimate
- ultimate analysis
- ultimate bearing capacity
- ultimate breaking load
- ultimate breaking strength
- ultimate breaking stress
- ultimate compressive strength
- ultimate damping
- ultimate load
- ultimate moment of resistance of a composite section
- ultimate number of cycles
- ultimate position
- ultimate strength
- ultimate strength design
- ultimate strength of a shear connection
- ultimate stress
- ultimate tensile strength
- ultra-fine
- ultra-fine screen
- ultra-high voltage
- ultraclean steel
