Plastics piping systems for industrial applications - Polybutene (PB), polyethylene (PE) and polypropylene (PP) - Specifications for components and the system - Metric series (ISO 15494:2003)
工业用塑料管道系统聚丁烯(PB)、聚乙烯(PE)和聚丙烯(PP).部件和系统规范.米制系列(ISO 15494-2003)