وصف: Piston Ring
General Electric (CF6-80A, CF6-80A2, CF6-80C2B1, CF6-80C2B2, CF6-80C2B4, CF6-80C2B6, CF6-80C2B1F, CF6-80C2B2F, CF6-80C2B4F, CF6-80C2B5F, CF6-80C2B6F, CF6-80C2B7F,)
Pratt & Whitney (JT9D-7R4D, JT9D-7R4E, JT9D-7R4E4 PW4052, PW4056, PW4060A, PW4062)