Onboard China ODM/PCBA Vendor

I’m ready to move an industrial-grade controller board from 50K units to 500K Units production and need a China-based ODM and PCBA house that can step in, refine the current design, and run the line at scale... (Budget: ₹150000 - ₹250000 INR, Jobs: Circuit Design, Electrical Engineering, Electronics, Engineering, Industrial Engineering, Manufacturing, PCB Layout, Supply Chain)