The assessment for stainless steel liner technology for pipeline repair developed by Zhongtuo was held by Technology Development Promotion Center of Ministry of Housing & Urban-Rural Development. The Director Gao Lixin presided over the meeting. Zhongtuo GM Xia Zhiming made a speech. Chief engineer Ge Yanchao of Zhongtuo reported the technology in detail. Assessment committee agreed this technology of Zhongtuo is in the domestic advanced level, agreed to adopt the assessment after consideration carefully.

The stainless steel liner technology for pipeline repair was used by Weifang Water successfully.

Members of assessment committee: Chairman Liu Yusheng, chief enginner form Beijing Municipal Engineering Design & Research Institute. China City Gas Association chairman Wang Tianxi. Vice chairman Xiao Shaoyong from China Urban Water Association. Chief engineer Han Qingxiang, Director Huang Jinping. Professor Li Haizhu from CNPEC. Senior Engineer Xu Yanggang. Director Wen Zuoxiang.