GENEVA, April 28 -- TIN BRANCH OF YUNNAN TIN CO. LTD. (Beside No. 5 RoadMengzi Economic And Technological Development ZoneHonghe, Yunnan 661400), 云南锡业股份有限公司锡业分公司 (中国云南省红河哈尼族彝族自治州蒙自经济技术开发区5号路旁) filed a patent application (PCT/CN2024/125437) for "NATURAL GAS LANCE APPARATUS FOR FUMING FURNACE AND USE, AND SUBMERGED BATH SMELTING PROCESS" on Oct 17, 2024. With publication no. WO/2025/082428, the details related to the patent application was published on A...