BYGGNADSGJUTFORM FOR PLATS- ELLER BLOCKGJUTNING AV VEGGAR/MURAR MED YTTERSKIKT OCH/ELLER INNERSKIKT I EXEMPELVIS OBEARBETAD NATURSTEN

摘要

The outer surfaces of the natural unworked stones are pushed into the pliable foam rubber layer (2) on the insides of the mould (1) in sufficient quantity so that an even and fine joint is formed around them during the casting process.