... .OEM services,R&D speaker part mold 2.15 year experiences of speaker aluminium frame 3.Qualified machining Description:1. Name ... ADC1, LM6-M, LM20-M, Zamak3, Zamak5, ect.R&D capacity:Professional tooling development & process & designProduction Equipments:150T-1800T aluminum ... and high efficiency before tooling machining.Mould cavity and frame will be machined by automatic CNC milling center, CNC ...