Anh
groove guard
back ring
ball
bead
ring collar
Đức
Wulstrand
Halsring
Pháp
plage de garde du sillon
contre-bague
Wulstrand /ENG-ELECTRICAL/
[DE] Wulstrand
[EN] groove guard
[FR] plage de garde du sillon
Halsring,Wulstrand /INDUSTRY,INDUSTRY-METAL/
[DE] Halsring; Wulstrand
[EN] back ring; ball; bead; ring collar
[FR] contre-bague