TK316 is short for TUSK Stainless Steel, which indicated that your jewelry will continue being stainless and you'll have no problems cleaning it. The meaning of “JP 88” will vary with regards to the jeweler, nation of origin, and distinct marking technique used. TK316 is short for TUSK Stainless Steel, https://casper77mauraihuntungdari46665.tribunablog.com/about-jp88-51247640