标题: ISO 21307:2011 Plastics pipes and fittings — [打印本页] 作者: hgundas 时间: 2020-4-5 23:20:52 标题: ISO 21307:2011 Plastics pipes and fittings —
[attach]222979[/attach] ISO 21307:2011
Plastics pipes and fittings — Butt fusion
jointing procedures for polyethylene (PE)
pipes and fittings used in the
construction of gas and water
distribution systems