Heat-supply pipe networks are mainly installed in large-scale heat-supply enterprises including thermal power stations, distributed power stations and heating power companies. The pipeline typically features a large diameter, long distance and high requirements on transporting performance. WANLI PIPELINE provides pre-insulated piping systems for above ground and underground applications that are suitable for hot water or steam distribution networks. Our products can be manufactured following Chinese standards or European Standards, with features of low overall engineering investment, short construction period, long life span, energy-saving and environment friendly.