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Research findings
Small-cohort observation
This filter matches 9 archive records. Nanjing Ticom Tech Co., Ltd. (Jiangsu / Advanced equipment); Tianjin Railway Signal Co., Ltd. (Tianjin / Advanced equipment); Henan Lanxin Technology Co., Ltd. (Henan / Next-generation information technology); these are reading samples.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 9 | 9 | 0.0% | 2026-10-16 |
Deduplicated company IDs.
Filter differences and comparison link
The largest recorded sub-industry participation gap is for Railway communication and signalling electronic equipment: 0/9 here versus 1/12 in the reference, an absolute difference of 8.3 percentage points. The cohorts have overlapping company IDs and are not independent samples.
| sub-industry | Focal count/base | Reference count/base | Participation gap (pp) |
|---|---|---|---|
| Railway communication and signalling electronic equipment | 0/9 | 1/12 | -8.3 |
| Industrial software and information services | 1/9 | 2/12 | -5.6 |
| Special-purpose machinery | 1/9 | 1/12 | +2.8 |
| Industrial conveying and intralogistics equipment | 1/9 | 1/12 | +2.8 |
| Electronic assemblies and systems integration | 1/9 | 1/12 | +2.8 |
Zero means no recorded label, not no business; multi-label cells overlap.
Counts within parent sets
| Set | All records | This subset | Excluding this subset |
|---|---|---|---|
| All public archive records | 19,297 | 9 | 19,288 |
Observed labels
| Dimension | Label | Count/base | Participation |
|---|---|---|---|
| reporting jurisdiction | Beijing | 2/9 | 22.2% |
| reporting jurisdiction | Jiangsu | 2/9 | 22.2% |
| reporting jurisdiction | Zhejiang | 2/9 | 22.2% |
| reporting jurisdiction | Tianjin | 1/9 | 11.1% |
| reporting jurisdiction | Henan | 1/9 | 11.1% |
| industry | Advanced equipment | 6/9 | 66.7% |
| industry | Next-generation information technology | 2/9 | 22.2% |
| industry | Biomedicine | 1/9 | 11.1% |
Multi-label counts can overlap; filter compliance is not industrial advantage.
Evidence and list-linkage counts
| Measure | Count |
|---|---|
| Companies with existing sourced excerpts | 5/9 |
| Existing reviewed bilingual excerpt pairs | 5 |
| IDs linked to 2026 local lists | 0/9 |
Existing excerpts do not certify entire old reports; list linkage is not final recognition. Full definitions are on the series page.
How candidates match
| Field | Matches/candidates |
|---|---|
| Name | 0/9 |
| Product field | 9/9 |
| Sub-industry | 0/9 |
Fields can overlap; hits establish search relevance only.
Recorded roles and delivery checks
Related studies and shared records
| Comparison study | Reference records | Shared IDs | Focal only | Intersection/union |
|---|---|---|---|---|
| Urban Rail Communication Signaling Keyword Candidate Study | 12 | 9 | 0 | 75.0% |
| Airport Railway Signaling Control Keyword Candidate Study | 27 | 9 | 0 | 33.3% |
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Nanjing Ticom Tech Co., Ltd. | Jiangsu | Advanced equipment |
| Tianjin Railway Signal Co., Ltd. | Tianjin | Advanced equipment |
| Henan Lanxin Technology Co., Ltd. | Henan | Next-generation information technology |
| Beijing Railway Signal Co., Ltd. | Beijing | Advanced equipment |
| Harbin Kejia GENERAL Mechanical & Electrical Co., Ltd. | Heilongjiang | Advanced equipment |
| Jiangsu WELM Technology Co., Ltd. | Jiangsu | Advanced equipment |
| CRSC Wanquan Signal Equipment Co., Ltd. | Zhejiang | Biomedicine |
| Kasco Signal (Beijing) Co., Ltd. | Beijing | Advanced equipment |
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Nanjing Ticom Tech Co., Ltd. | Company data profile |
| Tianjin Railway Signal Co., Ltd. | Company report page |
| Henan Lanxin Technology Co., Ltd. | Company data profile |
| Beijing Railway Signal Co., Ltd. | Company report page |
| Harbin Kejia GENERAL Mechanical & Electrical Co., Ltd. | Company data profile |
| Jiangsu WELM Technology Co., Ltd. | Company data profile |