Water Heater Heat Exchanger Components Keyword Candidate Study

Filter-difference study

Against the 44-record Heat Exchanger Refrigeration Components Keyword Candidate Study, this 36-record cohort shares 32 records. Only 4 occur here and 12 only in the reference; the union contains 48. These are filter-membership differences, not company entries or exits.

An ID-deduplicated archive snapshot, not the whole market, current recognition or operating results.

The largest recorded sub-industry participation gap is for Automotive thermal management: 1/36 here versus 4/44 in the reference, an absolute difference of 6.3 percentage points. The cohorts have overlapping company IDs and are not independent samples.

Zero means no recorded label, not no business; multi-label cells overlap.

Multi-label counts can overlap; filter compliance is not industrial advantage.

Existing excerpts do not certify entire old reports; list linkage is not final recognition. Full definitions are on the series page.

Fields can overlap; hits establish search relevance only.

Shared records with Heat Exchanger Refrigeration Components Keyword Candidate Study: 32; records in this cohort but outside that set: 4. The intersection/union ratio is 66.7%, a measure of label overlap rather than business collaboration. Read comparison

Shared records with Pressure Vessels Special Equipment Keyword Candidate Study: 29; records in this cohort but outside that set: 7. The intersection/union ratio is 17.8%, a measure of label overlap rather than business collaboration. Read comparison