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SBS-Molch - coating man-accessible sewers with the dry gunite process with reference to [NN90a] [FI-SBS] [Image: S&P GmbH] - Sketch of the principle

SBS-Molch - coating man-accessible sewers with the dry gunite process with reference to [NN90a] [FI-SBS] [Image: S&P GmbH] - Sketch of the principle