hgundas 发表于 2020-4-19 21:12:34

ISO 15614-12:2014 Specification and qualification of welding procedures for meta



ISO 15614-12:2014
Specification and qualification of
welding procedures for metallic
materials — Welding procedure test —
Part 12:
Spot, seam and projection welding

admin 发表于 2020-4-25 23:16:32

谢谢您的分享，金币已奖励!
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