Your Trusted Partner for OEM Casting and Machining Solutions With Over 45 Years Of Expertise In The OEM Casting Industry, Hebei Metals & Minerals (HMM) Has Grown Into A Globally Recognized Manufacturer Of High-Performance Casting And Precision Machined Components. By Leveraging Deep Market Knowledge And Continuous Technical Innovation, We Specialize In: Sand Casting (3 Automatic Production Lines) Investment Casting (Lost Wax) Aluminum Die Casting / Gravity Casting CNC Machining Fabrication All HMM Facilities Are ISO 9001 And ISO 45001 Certified, Supported By Stringent PPAP Level 3 Process Controls To Ensure Consistent Quality For Automotive, Industrial, Power Transmission And Machinery Applications. Our Core Principle: “Quality First” Every Component We Produce Reflects Our Unwavering Commitment To Excellence, Reliability, And Total Customer Satisfaction.