This document specifies the terms and definitions, symbols and abbreviations, materials, markings and classifications, pipe structures and connection methods, technical requirements, test methods, Testing rules, marking, transportation and storage. This document is applicable to large-diameter high molecular weight high-density polyethylene (HMWHMWHDPE) hollow plastic steel composite winding structural wall pipes (hereinafter referred to as "pipes") for buried urban domestic drainage, industrial drainage and farmland drainage with a long-term transport medium temperature below 40°C. .