valentine coffee mugs

400ml Valentine's Day cups with decal fired and bottom color spraying for gift stores Product Description: The bow-tie and cherry design cup undergoes several intricate processes, including color spraying, decal firing, and acid pickling. These multiple steps introduce various technical challenges: Quality Control Challenges: The cup is susceptible to defects such as burst decals and decal detachment, which can compromise its overall quality.Cost and Environmental Issues: