mchb 发表于 2016-3-9 00:21:18

DNVGL-RU-SHIP-Pt2Ch1

DNVGL-RU-SHIP-Pt2Ch1：
Part 2 Materials and welding Chapter 1 General requirements for materials and fabrication

admin 发表于 2016-3-9 15:20:23

谢谢您的分享，金币已奖励！
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