TK316 is short for TUSK Stainless Steel, which indicated that the jewelry will continue to be stainless and you will have no hassle cleaning it. The meaning of “JP 88” could vary based on the jeweler, place of origin, and particular marking process utilized. TK316 is short for TUSK Stainless-steel, https://rowanwitfq.digitollblog.com/36734567/the-definitive-guide-to-jp88