TK316 is short for TUSK Stainless Steel, which indicated that your jewellery will remain stainless and you should have no issues cleaning it. Having said that, this interpretation is more unlikely, as “JP” itself doesn’t normally signify a certain steel typical. CN signifies that the jewellery is manufactured in China, https://slotrtp11109.jaiblogs.com/63920124/a-secret-weapon-for-jp88