标题: ISO 15614-12:2014 Specification and qualification of welding procedures for meta [打印本页] 作者: hgundas 时间: 2020-4-19 21:12:34 标题: ISO 15614-12:2014 Specification and qualification of welding procedures for meta
[attach]223844[/attach] ISO 15614-12:2014
Specification and qualification of
welding procedures for metallic
materials — Welding procedure test —
Part 12:
Spot, seam and projection welding