hgundas 发表于 2020-4-19 21:19:54

ISO 15614-13:2012 Specification and qualification of welding procedures for meta


ISO 15614-13:2012
Specification and qualification of welding
procedures for metallic materials —
Welding procedure test —
Part 13:
Upset (resistance butt) and flash welding

admin 发表于 2020-4-25 23:16:35

谢谢您的分享，金币已奖励!
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