Comparing Two Suppliers on Hard Fields Only (No Scores)
Compare two Chinese aluminium extrusion suppliers by whether each hard field is on file. Disagreements stay side by side. Counts are not scores, and the two names are not ordered.
- ›Compare two suppliers with an on-file / not-on-file grid. Do not assign points, and do not order the two names.
- ›Five classes used here: identity, address, founded year, certificate, and scale. A finish list is optional.
- ›A certificate is on file only with the full chain (holder, body, number, scope, expiry, checked date). The standard name alone is not on file.
- ›If two sources disagree, keep both. Do not collapse scale statements into one figure, and do not print a capacity or a line count for that cell.
- ›The field-presence sheet is the live grid for two open profiles, Guangya Aluminum and Chengdu Hongya Aluminum. This page does not order those profiles.
A grid, not a score
Put the two suppliers in two columns. For each hard field, write whether it is on file. You may tally on-file cells in your own notes. You do not turn that tally into points, and you do not write that one supplier is ahead of the other.
The live grid is the field-presence sheet. On that sheet, 有 means on file, 缺 means not on file, and 有（并列） means the sources do not agree. Open a 有（并列） cell to read each source and the day it was read. This guide uses the same rule.
What on file and not on file mean
Five classes, plus an optional finish row. The last column is what you do when the sources do not agree.
| Class | On file | Not on file | If sources disagree |
|---|---|---|---|
| Identity | A legal name you can read, and who you would contract with | You cannot tell who the contract party is | Keep both wordings, with source and checked date |
| Address | A registered address or a plant location, with a source | No address on the page | Keep both addresses. Do not overwrite one with the other |
| Founded year | The founded year, kept apart from a platform signup year | The two years are mixed into one “Founded” line | Do not pick one year |
| Certificate | Holder, issuing body, number, scope, expiry, and checked date | Name only, or the block is hidden | Keep both certificate lines. Do not keep only the webpage version |
| Scale | A capacity or a headcount with a source and a checked date | No sourced figure, so the block is hidden | Keep both statements. Do not merge them into one figure, and do not print a capacity or a line count |
| Surface finish (optional) | An itemized list plus a checked date | A slogan such as “full finishing” with no list | Keep both lists |
On file / not on file is not a moral judgment of the company. A tally of on-file cells is not a score.
〔example〕 grid
Illustrative letters only. Not Guangya Aluminum, not Chengdu Hongya Aluminum, and not an order.
| Class | 〔example A〕 | 〔example B〕 |
|---|---|---|
| Identity | 有 · on file | 有 · on file |
| Address | 有 · on file | 缺 · not on file |
| Founded year | 有 · on file | 有（并列） · both years kept |
| Certificate | 有 · on file | 缺 · not on file |
| Scale | 缺 · not on file | 有 · on file |
〔example〕 only. The founded-year cell on 〔example B〕 keeps both sources and does not choose a year. Do not sort these columns.
Two open profiles, not a result
Guangya Aluminum and Chengdu Hongya Aluminum are linked below so you can read the same classes on the field-presence sheet and on the hard-facts shelf. Read the cells. This page does not order the two profiles.
A missing certificate cell means the chain is not on the page. A missing scale cell means there is no sourced figure, or the figures were not collapsed into one. Neither cell is a penalty, and neither cell is a place in a list.
Frequently asked questions
Can I give one supplier 80 and the other 60?
No. You may count how many classes are on file for your own notes. Do not turn that count into points, and do not write that one supplier is ahead of the other.
What counts as on file for a certificate?
The full chain: holder, issuing body, certificate number, scope, expiry, and the day you checked. A line that only names ISO 9001 is not on file.
What do I do when scale or certificate sources disagree?
Keep both, with the source name and the checked date. Mark the cell as sources-disagree (有（并列） on the field-presence sheet). Do not pick the prettier certificate line, and do not merge two scale statements into one capacity or one line count.
- Methodology →
- Data quality and supplier-field steps →
- Field-presence sheet (on file, not on file, or both sources side by side) →
- Hard-facts shelf →
- Guangya Aluminum profile →
- Chengdu Hongya Aluminum profile →
- How to verify an ISO certificate (six fields) →
- Why a name-only ISO line is not enough →
- What a missing field means →
This guide is written from public standards and industry-common knowledge, not supplier claims. Confirm system series, test reports, prices and certifications directly with the supplier via RFQ.
From research to a supplier shortlist
Suppliers are ranked from public records and our published methodology — we don't sell leads or take pay-to-rank. Confirm prices and certifications directly with the supplier via RFQ.