Besides CNC carbon fiber cutting frames, CNC customized metal parts are available as well. The popular materials are 6061-T6 aluminum,7075-T6 aluminum,Titanium, Stainless steel, steel, brass and copper material etc. If you need other material, please contact us freely. Samples would be sent before mass production. After getting drawings or samples, we could let you know the specific quotation. Sure, NDA agreement is available. After all, confidentiality is very significant. Looking forward to offering you high precision and high quality products. Any questions or needs, please contact us freely via FRQ or Emial.