ISO 10802:2020 EN f04b4879
Ductile iron pipelines — Hydrostatic testing after installation
现行
发布日期 :
2020-08-28
实施日期 :
ISO 10804:2018 EN d81c669f
Restrained joint systems for ductile iron pipelines — Design rules and type testing
现行
发布日期 :
2018-01-03
实施日期 :
ISO 18468:2017 EN 0140c8f5
Ductile iron fittings, accessories and their joints and valves — Epoxy coating
现行
发布日期 :
2017-06-15
实施日期 :