Table of Similar Goods and Services Class 42 Scientific and technological services 4210 Geological survey, research and development services 岩土工程勘察（420280） Class 42 Similar group 4210 岩土工程勘察 420280 Chinese 岩土工程勘察 English geotechnical investigations Spanish investigación geotécnica Item No. 420280 Class 42 Similar group 4210 Version 区分表 2026 文本（基于 NCL 13-2026，2026-01-01 起施行）