Plans for Public Utilities, Water Resources and Long-distance Lines; Plans for Long-distance Pipelines, Technical Regulation of the DVGW (German Gas and Water Engineers Association)— 11 стр.
Testing of Pressure Pipelines for Water by Internal Pressure; Pressure Pipes Made of Ductile Cast Iron and Steel Pipes with Cement-mortar Lining— 2 стр.
Testing of Pressure Pipelines for Water by Internal Pressure; Pressure Pipes Made of Rigid PE (Rigid Polyethylene) and Soft PE (Soft Polyethylene)— 2 стр.