How about Safir Gold?
All right. Safir Gold is a brand owned by Shenzhen Safir Jewelry Co., Ltd. Safir pioneered "solder-free welding technology" to end the defects of traditional gold "solder welding", make gold more pure and precious, and avoid skin damage at the same time, and won the "First Prize of Science and Technology of China Gold Association"; The purity of gold using solderless welding technology is as high as 999.9%, which is a good gold product.