GB/T 93-1987 (GB) and TCVN 130:1977 (TCVN)
This page records how the Chinese standard GB GB/T 93-1987 corresponds to TCVN TCVN 130:1977, the standard used in the destination ASEAN market. The correspondence carries confidence level A — Close match.
Comparison
| Item | China | ASEAN |
|---|---|---|
| Standard number | GB/T 93-1987 | TCVN 130:1977 |
| Issuing body | GB | TCVN |
| Title (English) | Spring lock washers | Spring washers. Dimension and specifications |
| ICS category | 10 | 10 |
| Match confidence | A (Close match) | |
What confidence level A means
The object of the standard and the test or classification method both match. The two standards are usually interchangeable for procurement purposes, but the edition year must still be checked.
How to use this
A cross-reference tells you where to look, not what the answer is. If the level is A or B, ask your supplier for a test report against the ASEAN standard and compare the measured values with the limits in that standard. If the level is C or D, treat the two documents as separate requirements and check each clause. If the level is E, the product may be regulated under a different instrument in the destination country — for example a food-contact or electrical-safety regulation rather than a product standard — and you should confirm with the importing authority.
Next steps
Check the tariff and origin rule
Whether duty applies, and what a Form E certificate of origin would save.
Estimate the landed cost
Route options and total cost from your factory to the destination.
Find a factory that meets it
Chinese manufacturers able to produce to this standard.
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Search by standard number or product family.
A test report against TCVN TCVN 130:1977 is normally required at import. Testing bodies accredited for this standard can issue one — contact us for a referral, or ask your supplier whether they already hold a current report.
This correspondence is generated by comparing the scope, object and test-method terms of the two standards and is provided as a research aid. It is not a legal equivalence. Confirm the requirement with the destination standards body, a certified laboratory, or your customs broker before shipping. Record generated 2026-10-09.