DS1009B(3)Standardmanhole-TypeH (withoutdesiltingopening) DS1010B(3)Standardmanhole-TypeH/D (withdesiltingopening) DS1011B(3)Standardmanhole-TypeI (withoutdesiltingopening) DS1012B(3)Standardmanhole-TypeI/D (withdesiltingopening) DS1013B(3)Standardmanhole-TypeJ ...