mm x mm 20 × 20 25 × 25 32
mm x inch 20 × 1/2″ 25 × 3/4″ 32
mm x inch 40 × 1.1/4″ 50 × 1.1/2″ 63
mm x mm 25 × 20 32 × 25 40
mm x inch x mm 20 × 1/2″ × 20
mm x mm x mm 20 × 20 × 20
