【中文】三层复合结构：内层饮用水级 PE 抗菌层（非长效接触性抗菌）、中层 HDPE 增强层、外层玄武岩纤维增强保护层；用于市政给水及农村饮水工程，寿命≥50年、工作温度≤40℃、最大压力2.0MPa。
【English】Three-layer composite: potable-grade PE anti-bacterial inner layer (non-residual contact action), HDPE core and basalt-fiber reinforced protective outer layer; for municipal and rural drinking-water systems, service life ≥50 years, ≤40°C, up to 2.0MPa.
