GSO ISO 15494:2015 工業(yè)應(yīng)用塑料管道系統(tǒng) 聚丁烯、聚乙烯和聚丙烯 組件和系統(tǒng)規(guī)格 公制系列
Plastics piping systems for industrial applications -- Polybutene (PB), polyethylene (PE) and polypropylene (PP) -- Specifications for components and the system -- Metric series