4 Wide Grooves

occlusal grooves

periodic grooves

Piston Ring Grooves

pitch of grooves

ratchet tube with internal spiral grooves

Relief grooves for grinding wheels

ring with double grooves

roller with grooves

rub grooves

narrow transverse grooves

setting deep grooves

Single-row Bidirectional Spiral Grooves

spherical surface key grooves

spinal nerve grooves

Spiral Grooves

spiral grooves on seal face

Stress-Relief Grooves

thermal isolation grooves