... speaker part mold 2.15 year experiences of speaker aluminium frame 3.Qualified machining Description:1. Name: ADC12 ... die casting speaker aluminium frame2. Technology: aluminium die casting3. Material grade: ADC124. Standard: ASTM, ... Class:Die castingMaterial: A380, A360, ADC12, AlSi12Cu, ADC1, LM6-M, LM20-M, Zamak3, Zamak5, ect.R&D capacity: ...