Surface treatment: The surface is polished and burnished many times and is cleared as mirror. Then we do copper plating, nick Specifications1. CE, ISO certificate 2. 5 years warranty 3. Export oriented company 4. Brass body 5. Lift testing: 300,000 times1. Adopt strong new ABS plastic material2. Chrom plating finish, resist corrosion, mirror bright finish3. Zinc alloy ball or brass ball as this ...