唐伯虎 发表于 2017-2-28 20:29:27

BS EN ISO 5172-2006 Gas welding equipment — Blowpipes for gas welding, heating

BS EN ISO 5172-2006 Gas welding equipment — Blowpipes for gas welding, heating and cutting — Specifications and tests，这个不知道说啥，有用的人就下载吧

admin 发表于 2017-3-2 15:33:41

谢谢您的分享,金币已奖励!

唐伯虎 发表于 2017-3-2 16:04:11

admin 发表于 2017-3-2 15:33 static/image/common/back.gif
谢谢您的分享,金币已奖励!

谢谢，正需要下载资料呢
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