cc523pate 发表于 2020-9-17 13:25:30

BS EN ISO 14174-2019 Welding consumables — Fluxesfor submerged arc weldingand

BS EN ISO 14174-2019 Welding consumables — Fluxesfor submerged arc weldingand electroslag welding — Classification (ISO 14174:2019)

myyeh 发表于 2020-9-18 18:53:18

謝謝------------------------

admin 发表于 2020-9-19 19:39:49

谢谢您的分享,金币已奖励!
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