cc523pate 发表于 2017-7-23 14:14:40

BS EN ISO 17641-2-2015 Destructive tests on welds in metallic materials

BS EN ISO 17641-2-2015 Destructive tests on welds in metallic materials — Hot cracking tests for weldments — Arc welding processes


admin 发表于 2017-7-25 12:57:01

谢谢您的分享,金币已奖励!
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