Rozmowa z Derekiem Choi’em, przewodniczącym Międzynarodowego Stowarzyszenia Technologii Bezwykopowych (ISTT)

The International Society for Trenchless Technology was established in 1986 with the following objectives: to advance the science and practice of Trenchless Technology for the public benefit; to promote education, training, study and research in that science and practice. ISTT encourages the formation and affiliation of societies sharing its objectives world-wide. There are now 26 such Affiliated Societies in 6 continents.