1. Raw material preparation：Stainless steel sheets (304/316 food grade).Cup lids.Sealing rings.Base pads
2..Cup body shaping：Stretching (mold forming) .Edge cutting (removing burrs).Edge rolling (enhancing the strength of the cup opening)
3. Welding：Laser welding (cup body and cup bottom).Weld inspection (to ensure no leakage)
4. Polishing:  Mechanical polishing (smooth surface).Electrolytic polishing (enhances corrosion resistance)
5. Cleaning:  Ultrasonic cleaning (to remove oil and dust).High-temperature disinfection (to ensure hygiene)
6. Vacuuming:  Vacuum exhaust (forming a vacuum layer).Vacuum inspection (ensuring the vacuum level meets the standard)
7. Exterior Wall Treatment:  Painting (color, pattern).Printing (logo, text).Other processes (electroplating, wire drawing, sandblasting)
8. Assembly:Install the cup lid (including the sealing ring).Install the base pad (for anti-slip and protection)
9. Inspection:Appearance inspection (scratches, depressions).Sealing test (no leakage).Thermal insulation performance test (insulation duration)
10. Packaging:Inner packaging (plastic bags, bubble bags).Outer packaging (paper boxes, gift boxes).Additional materials (instructions, certificates)