 |
| |||
| steel bottom door (unten an Behälter angebracht); steel damper door (in Luftkanal); steel door (Tür); steel flap; steel flapper valve (in Luftkanal); steel hatch (große Klappe, Luke); steel lid (Verschluß einer Verpackung); steel trap door (Fallklappe); steel valve disk (Rückschlagklappe) | |||
| |||
| steel trapdoor | |||