... & CNC 4, ISO9001, export entitlement 5, OEM Aluminum Embeded Mailbox NameDelicacy aluminum embeded mailboxCertificateISO9001MaterialA360, A380, A356, ADC12Heat TreatmentT6 Heat TreatmentSurface finishSandblasting ... aluminum casting(unit weight from 0.05kg to 20kg) 1.Corrosion resistance; Heat resistance; Dimensional accuracy2.Customized specifications are welcome Delicacy Aluminum Embedded Mailbox ...