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Stone cleaning: frozen waste

By: Language: English Series: Building ; 259(7861) 23 September 1994, 52(1)Publication details: 1994Subject(s): Summary: Features "Cryogenesis", a dry ice masonry cleaning product developed in the USA. Brief description of laser cleaning for sandstone or limestone.

Features "Cryogenesis", a dry ice masonry cleaning product developed in the USA. Brief description of laser cleaning for sandstone or limestone.