BS EN ISO 21225-2. Plastics piping systems for the trenchless replacement of underground pipeline networks. Part 2. Replacement off the line by horizontal directional drilling and impact moling— 26 стр.
BS EN ISO 21225-1. Plastics piping systems for the trenchless replacement of underground pipeline networks. Part 1. Replacement on the line by pipe bursting and pipe extraction— 26 стр.
Plastics piping systems for the trenchless replacement of underground pipeline networks. Replacement off the line by horizontal directional drilling and impact moling— 28 стр.
Plastics piping systems for the trenchless replacement of underground pipeline networks - Part 1: Replacement on the line by pipe bursting and pipe extraction (ISO 21225-1:2018); German version EN ISO 21225-1:2018— 28 стр.
Plastics piping systems for the trenchless replacement of underground pipeline networks - Part 2: Replacement off the line by horizontal directional drilling and impact moling (ISO 21225-2:2018); German version EN ISO 21225-2:2018— 29 стр.