watertight diaphragm,watertight facing
[DE] Dichtungsschuerze
[EN] watertight diaphragm; watertight facing
[FR] masque d' étanchéité
grout curtain,watertight diaphragm,watertight screen
[DE] Dichtungshaut; Dichtungsschirm; Dichtungsschleier
[EN] grout curtain; watertight diaphragm; watertight screen
[FR] rideau d' étanchéité