Published by on 7 de agosto de 2026 Dental Orthodontic Expansion Screw Packing: 1pcs/bagQuantity:1 pcMaterial: stainless steelModel:Mini, Standard, 8mm,9mm,11mm,13mmFeatures:1. used in lingual side.2. Fine medical stainless steel, good quality.3 maily used in dentistry dentition orthontic arch extensions for arch stenosis and posterior crossbite patients