acceptable ring groove tool

Internal ring groove nut

piston ring groove

Piston Wear Ring

Ring Groove

ring-ring-section

Wear Ring

the Western Ring Road Sector of Central Ring Road

(piston) ring

(semi-)prime ring

(stong) regular ring

0-ring

1 550 nm fiber-optic ring network

10 kV ring

10 kV ring main unit

10-membered ring hydrogen bond

13-membered ring hydrogen bond

14-membered ring

170-millimeter-thick ring plate

18-18 steel for retaining ring