In 2017, Sinopec Pipeline Storage and Transportation Company planned to use air-blown micro-cable for optical fiber in the pipeline storage and transportation branch company, pipeline storage and transportation Huangdao oil depot, pipeline storage and transportation Ningbo oil transportation, pipeline storage and transportation Tianjin oil transportation Optical cable communication network renovation project. After strict bidding and product testing, the final micro-cables all use TNT products. The micro cable mainly adopts a 24-core layer twisted structure. The excellent product quality and perfect technical service of TNT Micro Cable have been highly recognized by the owner.