GENEVA, Nov. 6 -- CHINA RAILWAY SHANGHAI ENGINEERING GROUP MUNICIPAL ENVIRONMENTAL PROTECTION CO., LTD. filed a patent application (CN2025/130897) for “HIGH-FREQUENCY INDUCTION WELDING REPAIR METHOD AND APPARATUS FOR STAINLESS STEEL LINER”. With publication no. WO/2026/227710, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: B23K 13/02
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
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