TK316 is short for TUSK Stainless-steel, which indicated that the jewelry will continue being stainless and you will have no difficulties cleansing it. The which means of “JP 88” could vary depending upon the jeweler, country of origin, and certain marking technique applied. TK316 is brief for TUSK Stainless Steel, https://israelzkvfq.blogs-service.com/67818621/the-single-best-strategy-to-use-for-jp88