Forward right wing to body fairing has several loose screws.
右大翼机身整流罩前部有几颗螺钉松动。
2
Dongguan Wing Metal screws five franchised and non-standard fasteners variety of high quality standards.
东莞五荣五金螺丝专营多种优质标准和非标准紧固件。
3
An inspection approach of the wing beam structure with screws connected is studied. The curve is obtained for inspection probability with ultrasonic detecting cracks.