Frame web No. 30 is a super - thin wall of L15 which is a new advanced jet trainer, developed independently by Hongdu Aviation Industry Group.

后机身30框板，是公司自行设计开发的L15新型高级教练机超薄壁整体框板。

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Frame web No. 30 is a super - thin wall of L15 which is a new advanced jet trainer, developed independently by Hongdu Aviation Industry Group.

后机身30框板，是公司自行设计开发的L15新型高级教练机超薄壁整体框板。

youdao