G311329525,BICONVEX LENS; N-BAK 4; D=8; F=7
G311331000,BICONVEX LENS; N-SK 2; D=31.5; F
G311331322,BICONVEX LENS; N-SK 2; D=31.5; F
G311331329,BICONVEX LENS; N-SK 2; D=31.5; F
G311331525,BICONVEX LENS; N-SK 2; D=31.5; F
G311335000,BICONVEX LENS; N-BK 7; D=31.5; F
G311335322,BICONVEX LENS; N-BK 7; D=31.5; F
G311335329,BICONVEX LENS; N-BK 7; D=31.5; F
