bitumista tai kumista valmistettu kalvomainen rakennusmateriaali, jonka on tarkoitus estää veden läpäisy
string; a long, dry, ridgelike hummock on a raised bog
string; a long, dry, ridgelike hummock on a raised bog
string; a long, dry, ridgelike hummock on a raised bog
string; a long, dry, ridgelike hummock on a raised bog
string; a long, dry, ridgelike hummock on a raised bog
string; a long, dry, ridgelike hummock on a raised bog