Nose Undercarriage And Main Door Uplock 2 Ton , Nose Dooruplock 1 Ton , Main Undercarriage 4.2 Ton Uplock ,Engineering Unit , Nrc For Design And Development Of 1 Tonuplock , Nrc For The Design And Development Of 2 Tonuplocks , Nrc For The Design And Development Of 4.2 Tonuplock Quantity: 81