ADA specification for orthodontic wires is
32
30
27
25
26 - Dental X-ray Equipment 
27 - Resin-Based Filling Materials (Direct filling materials) 
28 - Endodontic Files and Reamers (Hand Use) 
30 - Dental Zinc Oxide Eugenol and Zinc Oxide Non-Eugenol Cements 
31 - Exposure time designation for timers of dental X-ray machines
32 - Orthodontic Wires
33 - Dental Terminology / Vocabulary