1. Raw materials
Inferior products are made of inferior zinc alloy recycled materials, with a loose structure, light weight and light hand. The superior products use sand-coated copper, high-quality zinc alloy or titanium alloy, which has a tight structure, a heavy weight, and a thick hand.
2.Plating
Inferior products are plated with a low-cost brightener, with a loose structure and a dull luster. They are susceptible to rust, abrasion, blistering, and flaking in the short term.