Wastewater lifting plants for buildings and sites. Principles of construction and testing. Lifting plants for wastewater containing faecal matter for limited applications— 20 стр.
Wastewater lifting plants for buildings and sites. Principles of construction and testing. Non-return valves for faecal-free wastewater and wastewater containing faecal matter— 18 стр.
Wastewater lifting plants for buildings and sites. Principles of construction and testing. Lifting plants for wastewater containing faecal matter— 20 стр.