sanmaosjy 发表于 2017-11-27 10:45:33

JIS Z 3183:2012 Classification for deposited metal of submerged arc welding for

JIS Z 3183:2012 Classification for deposited metal of submerged arc welding for carbon steel and low alloy steel

admin 发表于 2017-11-28 12:31:36

谢谢您的分享，金币已奖励!
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