ygs67 发表于 2016-4-12 16:35:43

ASTM F2447-05(2009)

ASTM F2447-05(2009) Standard Practice for Production Acceptance Test Procedures for Weight-Shift-Control Aircraft

admin 发表于 2016-4-13 09:09:47

谢谢您的分享，金币已奖励！
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查看完整版本: ASTM F2447-05(2009)