European route E 763 project，inSerbia. At first, the technicians were very worried about the impact of technical support and maintenance on the construction period or the high cost. After many communications, the project choosed a tensioning equipment with ws-itc-26 control system and some spare parts. We arranged training for relevant personnel. After the whole construction period, the customer thought that the equipment had reliable performance, easy maintenance. By remote communication with our technical support engineer ,they can do troubleshooting by theirselves, without any delay in construction progress caused of transnational factors.