Profile: Tianjin TimEast Sub-sea Pipeline Testing and Service Limited is a process and pipeline pre-commissioning & commissioning service. We include process service such as flange management, helium nitrogen leakage test, and chemical cleaning. Pipeline service for deep water hydro-test, pipeline integrity and decommissioning service. Leak testing is a method or process that identifies any defects that will adversely affect the performance or integrity of a component or process system. Chemical cleaning is to remove scales, deposits, or unwanted materials from process equipment, piping or any wetted/heated surface or any wetted or heated surface.