Trend 2005 - 2010. China Data Center, University of Michigan. China Yearly Statistics (National/Provincial/City/County): Infrastructure of Cities | Country: China | All Provinces: Shandong | Cities: Zaozhuang City | GroupCode: 330501.b0201 | Labor Metric*: Length of Water Supply Pipelines - Period end value, 2005-2010. Data-Planet™ Statistical Ready Reference by Conquest Systems, Inc. Dataset-ID: 035-002-023.