Welcome to WordPress. This is HORIZONTAL DRILLING By admin / Temmuz 19, 2019 / Horizontal Drilling / 0 Comments ABOUT HORIZONTAL DRILLING Manageable Horizontal Drilling (YYS) – new but rapidly evolving unchanged pipe flooring construction technology.YYS is applied in unchanged construction methods and infrastructure pipe flooring without distorting the surface or with minimal transmission in excavation work (e.g. during the construction of […]