Hello Mr. Wang,
ZF is working with Sunny for ADC12 material and Sunny introduced your company is good at die-casting and coating. ZF need to address the corrosion concern of ADC12 material. Karteek, Aravind, and Tom from ZF mechanical team will work with you for the coating process. Please let us know if you need a NDA in place. Thanks,
-Shawn
Kind Regards,