Approval.

tl/measurement_type_set.php

@@ -22,4 +22,12 @@ $measurement_type_set = array (
   'length_frame' => 'Frame (length)',
   'height_frame' => 'Frame (height)',
   'width_frame' => 'Frame (width)',
+  'length_min' => 'Length (min.)',
+  'length_max' => 'Length (max.)',
+  'height_min' => 'Height (min.)',
+  'height_max' => 'Height (max.)',
+  'width_min' => 'Width (min.)',
+  'width_max' => 'Width (max.)',
+  'diameter_min' => 'Diameter (min.)',
+  'diameter_max' => 'Diameter (max.)',
 );