Certifications & Patents
When you evaluate a zamac cap supplier, certificates are the first thing your QA team asks for — and the last thing most suppliers can actually produce. This page lists everything GCX can put on the table: three management system certifications, eleven granted patents, the document pack that ships with every order, and the tests we run as standard. Every number on this page is printed on the certificate itself and verifiable through the issuing bodies. If you need a document that is not listed here, ask our sales team and we will send it with your quotation.
Management System Certifications
GCX is certified to three management system standards, all issued on 2024-07-01 by Positive Standard Lianxin (Beijing) Certification Service Co., Ltd., a CNAS-accredited certification body, and all valid through 2027-06-30. The certification scope covers the manufacturing and development of bottle caps — the same operation that builds your tooling and runs your orders. Certificates are verifiable on the China National Accreditation Service (CNAS) and the certification body’s website.
| Standard | Registration No. | Scope | Valid through |
|---|---|---|---|
| ISO 9001:2015 Quality Management | 24E020193R0S | Manufacturing and development of bottle cap | 2027-06-30 |
| ISO 14001:2015 Environmental Management | 24E20106R0S | Environmental management activities in bottle cap manufacturing and development | 2027-06-30 |
| ISO 45001:2018 Occupational Health & Safety | 24S20095R0S | Occupational health and safety management in bottle cap manufacturing and development | 2027-06-30 |



Design Patents
GCX holds nine granted design patents for its own GCX-series perfume bottle designs, registered with the China National Intellectual Property Administration (CNIPA). These patents cover our in-house bottle designs rather than customer tooling — they are how we prove the design team develops original bottle forms, and they give brands a protected starting point when they do not want to develop a bottle from scratch. Design patents in China are valid for 15 years from the application date, so this portfolio runs to 2039.
| Design | Patent No. | Application date | Granted | Valid until |
|---|---|---|---|---|
| Perfume bottle (GCX-001) | ZL 2024 3 0375787.4 | 2024-06-19 | 2025-02-25 | 2039 |
| Perfume bottle (GCX-002) | ZL 2024 3 0375786.X | 2024-06-19 | 2025-02-21 | 2039 |
| Perfume bottle (GCX-003) | ZL 2024 3 0375797.8 | 2024-06-19 | 2025-02-21 | 2039 |
| Perfume bottle (GCX-004) | ZL 2024 3 0378957.4 | 2024-06-20 | 2025-02-25 | 2039 |
| Perfume bottle (GCX-005) | ZL 2024 3 0375781.7 | 2024-06-19 | 2025-02-21 | 2039 |
| Perfume bottle (GCX-006) | ZL 2024 3 0375784.0 | 2024-06-19 | 2025-02-25 | 2039 |
| Perfume bottle (GCX-008) | ZL 2024 3 0725759.0 | 2024-11-15 | 2025-07-15 | 2039 |
| Perfume bottle (GCX-009) | ZL 2024 3 0725753.3 | 2024-11-15 | 2025-07-11 | 2039 |
| Perfume bottle (GCX-010) | ZL 2024 3 0729759.8 | 2024-11-18 | 2025-07-11 | 2039 |
Patent numbers are verifiable through CNIPA public records. Certificates available on request — contact our sales team.









Tooling Patents
Two granted utility model patents protect the die-casting tooling itself — a quick-change mold locator that cuts changeover time between runs, and a mold structure designed for fast cleaning between production batches. Utility models in China are valid for 10 years from filing, so both run to 2032.
| Patent | Patent No. | Type | Granted | Valid until |
|---|---|---|---|---|
| Quick-change locator for die-casting molds(一种方便快捷更换模具的压铸模具定位架) | ZL 2022 2 0428812.6 | Utility model | 2022-10-11 | 2032-03 |
| Die-casting mold for easy cleaning(一种便于清洁的压铸模) | ZL 2022 2 0428826.8 | Utility model | 2022-10-14 | 2032-03 |


Documentation With Every Shipment
Every order ships with a document pack. Which documents apply depends on your market and your QA process, so we agree the pack at quotation stage rather than after production. The standard pack:
| Document | What it covers | When you get it |
|---|---|---|
| FAI report | First article inspection of the tooling and first shots | With T1 sample approval |
| PPAP | Process documentation, level agreed per order | Per order |
| RoHS & material certification | Alloy grade and plating chemistry declarations | With each shipment |
| Control plan | Process controls from casting to packing | Per order |
| COC | Certificate of conformance for the shipped batch | With each shipment |
Testing & Inspection
Every cap is checked 100% before surface finishing, because a plating layer hides a defect rather than fixing it — a pit or a scratch that survives to plating will still be there when the cap reaches the shelf. After finishing, the batch is checked against AQL. The tests we run as standard are salt spray, perfume abrasion, alcohol resistance, high and low temperature, boiling and seal performance. Which ones apply depends on what goes into the bottle, so we agree the test list at quotation stage instead of guessing.
Factory Audits Welcome
If documents are not enough, come and check in person. We welcome factory audits and customer visits at our plant in Dongguan — casting, polishing, finishing and QC areas are all on the production floor, not in a showroom. Tell our sales team two weeks ahead and we will prepare the inspection records, equipment list and document samples you want to review.
Arrange a visit: Peter@guanchengxin.com
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