fetch_failed_title_based: 韩语外贸专员 (Korean Foreign Trade Specialist) at Qingdao Tainofuolun Machinery, Korean required per title (clear Korean keyword: 韩语/Korean translator/teacher/specialist). Role based in Qingdao, China. Local Chinese applicants targeted, on-site. Title-based fallback per detail-fetch budget; sibling postings from same company/role family verified as Korean-required, local CN, on-site.