1. Concavity Location$ q4 w7 l4 M1 \! g5 @6 v
' ?$ f6 f4 e+ @% D1 ~* N3 T E
' A5 v U2 F1 f' i
2. # O% I& _8 e' f2 e7 OConcavity Requirements - R9 A) S' m: w! Q& p ( a( C! x/ J" t- k9 D; l$ q( |& D- a7 F2 M; T
3.Acceptable Surface on Ends Straight Cut Grousers ; V' m+ E: t7 ]) Z