@Wilshire to MealtimeVideosEnglish • 15 days agoPrimitive Technology: Geopolymer Cement (Ash and Clay) [11:59]www.youtube.comexternal-linkmessage-square0arrow-up115arrow-down11
arrow-up114arrow-down1external-linkPrimitive Technology: Geopolymer Cement (Ash and Clay) [11:59]www.youtube.com@Wilshire to MealtimeVideosEnglish • 15 days agomessage-square0