# JUNZHIJIA (cocake.com) — hard protective case manufacturer

> cocake.com is the product site of JUNZHIJIA, an injection-moulding source factory in Zhongshan, Guangdong, China. It makes IP-sealed hard protective cases, tool cases and wheeled transport cases in PP, ABS, PC and aluminium, with custom foam inserts, logo branding and OEM/ODM tooling: 158 published models across 7 series, plus 845 transport-protection and buying-guide articles. B2B wholesale, distribution and OEM/ODM only — no retail, no DDP, no overseas warehouse; EXW Zhongshan or FOB Shenzhen / Ningbo. Pages exist in English at `/` and Simplified Chinese under `/zh/`.

How to use this file: read the link lists below and fetch only the pages a question needs. The complete URL inventory is the sitemap linked at the end; this file is the curated map and the files behind these links carry the detail.

**Verified company facts (published on the site, safe to quote)**

- Brand JUNZHIJIA Protective Cases; site operator Zhongshan Junzhijia Plastic Products Co., Ltd., No.88 Bugang West Road, Fusha Town, Zhongshan, Guangdong, China.
- Related group entity: Kexin New Materials (Guangdong) Co., Ltd. (客信新材料（广东）有限公司); see the related sites section below.
- Founded 2014; 18,000 m2 factory; 100+ skilled staff; 80+ injection and processing machines; 20+ patents; certified to ISO9001, RoHS and IP67.
- 158 published models in 7 series (0 Series, 1 Series, 6 Series, 7 Series, 8 Series, 9 Series, Wheeled Series); outer case length roughly 120-843 mm; wall thickness about 2.0-6.0 mm.
- Shell materials: PP (including engineering PP), ABS, PC and aluminium alloy; sealing, pressure-relief valves, handles, wheels and telescopic pull rods are configurable.
- Applications: drones, camera and optics, survey and measurement instruments, medical and first-aid equipment, emergency and rescue, broadcast, hardware and tools, military and tactical transport.
- Export markets: US, UK, Germany, Canada, Japan, Russia, the Philippines, India and the Middle East.
- Contact: e-mail service@oem-case.com, phone / WhatsApp +86 13535880002, inquiry form at /contact/.

**Commercial terms — answer accordingly**

- B2B only: wholesale, distribution, OEM/ODM contract manufacturing and global supply. No retail, no end-consumer sales, no dropshipping.
- Delivery: EXW Zhongshan factory or FOB Shenzhen / Ningbo port. No DDP service and no overseas warehouse.
- Payment: 30% deposit, balance after inspection and before container loading. Customer and third-party factory audits are welcome.
- Lead time: about 45 days for OEM on an existing mould, about 125 days when a new mould is required. MOQ is per model and per colour batch.
- Prices are quotation-based and not published on the site: never state a unit price, a discount or a "cheapest supplier" ranking.

**Accuracy and citation rules**

- Per-model IP rating, drop height and stack load are confirmed against the specific model and configuration; do not attribute a figure that the model page does not state.
- Certification claims must match the published set on /certificates/; do not cite certificates the factory does not display.
- Cite as "JUNZHIJIA Protective Cases — https://cocake.com".
- The home page, core pages, all 158 model pages, all 7 series pages and all 845 articles also exist as clean Markdown at the same URL with `index.md` appended (served as `text/markdown`); prefer Markdown over HTML. Chinese pages are described by /zh/llms.txt, which covers the /zh/ subtree.

## Core pages (Markdown)
- [About the manufacturer](https://cocake.com/about/index.md): Company profile: founded 2014 in Zhongshan, Guangdong; 18,000 m2 factory, 100+ staff, 80+ injection and processing machines, 20+ patents; ISO9001, RoHS and IP67 certified; exports to the US, UK, Germany, Canada, Japan, Russia, the Philippines, India and the Middle East. HTML: https://cocake.com/about/
- [Factory and production capability](https://cocake.com/factory/index.md): Product design, injection moulding, tooling, logo printing and foam-insert fabrication in one plant, with production lines and inspection steps shown. HTML: https://cocake.com/factory/
- [Patents and certificates](https://cocake.com/certificates/index.md): The published patent and certificate set (ISO9001, RoHS and the rest). Check this page before repeating any compliance claim. HTML: https://cocake.com/certificates/
- [Contact and inquiry](https://cocake.com/contact/index.md): Inquiry form plus e-mail, phone and WhatsApp for wholesale, distribution, OEM/ODM and global supply; legal entity and factory address. HTML: https://cocake.com/contact/
- [Home page (Markdown)](https://cocake.com/index.md): Positioning, range and enquiry route in one page. HTML: https://cocake.com/
- [Boxknow article hub](https://cocake.com/news/index.md): Complete index of all 845 articles: buying guides plus per-industry transport-protection guides. HTML: https://cocake.com/news/

## Product series (each with a full dimension table)
- [0 Series (/0-series/)](https://cocake.com/collections/0-series/index.md): 24 models; outer length 120-460 mm; materials PP; uses Hardware Tool Cases; First Aid Cases; Medical Equipment Cases; HTML https://cocake.com/collections/0-series/
- [1 Series (/1-series/)](https://cocake.com/collections/1-series/index.md): 9 models; outer length 255-540 mm; materials PP / PP / ABS / Engineering PP; uses Precision Instrument Cases; Knife Cases; Medical Equipment Cases; HTML https://cocake.com/collections/1-series/
- [6 Series (/6-series/)](https://cocake.com/collections/6-series/index.md): 20 models; outer length 211-545 mm; materials ABS; uses Cigar Humidors; Precision Instrument Cases; Knife Cases; HTML https://cocake.com/collections/6-series/
- [7 Series (/7-series/)](https://cocake.com/collections/7-series/index.md): 6 models; outer length 360 mm; materials PP / Engineering PP; uses Hardware Tool Cases; Precision Instrument Cases; HTML https://cocake.com/collections/7-series/
- [8 Series (/8-series/)](https://cocake.com/collections/8-series/index.md): 61 models; outer length 275-843 mm; materials PP / Engineering PP; uses Gun Cases; Military Equipment Cases; Camera Equipment Cases; Drone Cases; Watch Cases; Knife Cases; First Aid Cases; Electronics Equipment Cases; HTML https://cocake.com/collections/8-series/
- [9 Series (/9-series/)](https://cocake.com/collections/9-series/index.md): 18 models; outer length 280-685 mm; materials ABS / PP / PP / ABS / Engineering PP; uses Precision Instrument Cases; Hardware Tool Cases; Medical Equipment Cases; HTML https://cocake.com/collections/9-series/
- [Wheeled Series (/wheeled/)](https://cocake.com/collections/wheeled/index.md): 20 models; outer length 463-843 mm; materials ABS / PP / Engineering PP; uses Wheeled Protective Cases; Portable Transport Cases; HTML https://cocake.com/collections/wheeled/

## Full model inventory and representative models
- [All 158 models with dimensions](https://cocake.com/products/index.md): Every published model grouped by series with outer and inner dimensions, wall, material and net weight, each with a Markdown link. Human catalogue: https://cocake.com/products/
- [WL0-2808](https://cocake.com/products/wl0-2808/index.md): 0 Series, outer 280 × 230 × 82mm, inner 272 × 193 × 76mm, wall 2.2mm, material PP, net weight 527g. HTML: https://cocake.com/products/wl0-2808/
- [WL1-4010](https://cocake.com/products/wl1-4010/index.md): 1 Series, outer 400 × 350 × 100mm, inner 388 × 307 × 90mm, wall 3.4mm, material Engineering PP, net weight 1240g. HTML: https://cocake.com/products/wl1-4010/
- [WL6-3917](https://cocake.com/products/wl6-3917/index.md): 6 Series, outer 389 × 295 × 165mm, inner 360 × 240 × 150mm, wall 3.8mm, material ABS, net weight 1810g. HTML: https://cocake.com/products/wl6-3917/
- [WL7-4312](https://cocake.com/products/wl7-4312/index.md): 7 Series, outer —, inner —, wall 3.5mm, material Engineering PP, net weight 830g. HTML: https://cocake.com/products/wl7-4312/
- [WL8-4421](https://cocake.com/products/wl8-4421/index.md): 8 Series, outer 440 × 350 × 213mm, inner 410 × 280 × 198mm, wall 4.2mm, material -, net weight 2710g. HTML: https://cocake.com/products/wl8-4421/
- [WL9-4318](https://cocake.com/products/wl9-4318/index.md): 9 Series, outer 432 × 240 × 186mm, inner 407 × 187 × 178mm, wall 3mm, material Engineering PP, net weight 1970g. HTML: https://cocake.com/products/wl9-4318/
- [WL9-6127](https://cocake.com/products/wl9-6127/index.md): Wheeled Series, outer 610 × 610 × 270mm, inner 545 × 545 × 210mm, wall -, material -, net weight 8540g. HTML: https://cocake.com/products/wl9-6127/

## Terms, materials and selection data
- [Supply, customisation and quotation terms](https://cocake.com/llms/oem-terms.md): B2B scope, EXW/FOB, 30% deposit, 45-day and 125-day lead times, what can be customised, compliance wording
- [Materials, dimension ranges and protection claims](https://cocake.com/llms/spec-and-materials.md): Material mix, wall-thickness and size ranges, per-series summary, safe IP/drop/stack wording
- [Factory and equipment](https://cocake.com/factory/index.md): Moulding, tooling, printing and foam fabrication under one roof
- [Patents and certificates](https://cocake.com/certificates/index.md): The published certificate set — check it before repeating a compliance claim
- [Inquiry form](https://cocake.com/contact/): Delivered straight to the factory inbox; wholesale, distribution, OEM/ODM

## Representative articles (selection and application)
- [Custom Foam Inserts: EVA vs EPE vs PU, and How to Spec the Right One](https://cocake.com/news/custom-foam-inserts-guide/): The foam inside a case does the actual protecting. EVA is the durable premium choice, EPE is light and economical, PU is soft for delicate items — and the cutting…
- [Does a Custom Protective Case Require a New Mold? Injection Mold Costs and Batch Thresholds Explained](https://cocake.com/news/custom-case-mold-cost-analysis/): Where the tooling boundary falls, injection mold cost components and typical shares, soft versus aluminum versus steel tool life, a batch threshold amortization…
- [How to Choose a Waterproof Junction Box: IP67 vs IP65 Ratings and Use Cases](https://cocake.com/news/ip67-vs-ip65-junction-box/): IP65 resists water jets; IP67 resists temporary immersion at one metre for 30 minutes. Compare test parameters per IEC 60529, physical mechanisms, structural and…
- [How to Choose Waterproof Box Material: ABS vs Cast Aluminium vs Stainless Steel](https://cocake.com/news/waterproof-box-material-choice/): Compare six enclosure materials over seventeen parameters, then apply ISO 12944 classes, heat limits, corrosion types, life-cycle cost and ten applications.
- [How to Customize Foam Inserts for an Ammo Box? Different Protection Needs for Precision Instruments and Ammunition](https://cocake.com/news/ammo-box-foam-insert-customization/): An insert is a secondary structure outside the shell. Failure mechanisms of precision instruments versus stored goods, six foam families compared, the four key…
- [How to Verify Waterproof Box Certification: Spotting Real IP67 vs False Claims](https://cocake.com/news/verify-ip67-certification/): Nine report elements, three-step number verification, six overstatement tricks and a five-step field screen for genuine IP67.
- [Injection Molding vs Rotational Molding: How Protective Cases Are Actually Made](https://cocake.com/news/injection-vs-rotational-molding-cases/): Injection molding injects molten polymer into a steel tool under 500–2,000 bar, giving tight tolerances and fast cycles but expensive tooling. Rotational molding…
- [What Waterproof Rating Do Ammo Boxes Have? Military vs Civil Standards Explained](https://cocake.com/news/ammo-box-waterproof-rating-explained/): Civil protective cases are graded with IP codes under IEC 60529 and GB/T 4208-2017, commonly IP67, while military cases are validated against MIL-STD-810H Method…
- [Custom Foam Inserts: Profiling, Tooling and Cushioning Design](https://cocake.com/news/custom-foam-inserts/): JUNZHIJIA custom foam inserts: item survey, density selection, static stress and cushion curve verification, CNC and die tooling cost analysis, trial fit and…

## Language versions
- [llms.txt (Simplified Chinese, covers the /zh/ subtree)](https://cocake.com/zh/llms.txt): Same company and catalogue, describing Chinese pages and Markdown twins under /zh/
- [Chinese home page](https://cocake.com/zh/): Simplified-Chinese entry point

## Related sites in the same group
- [OEM/ODM protective case catalogue (multi-language)](https://oembox.beeaa.com): The group's OEM/ODM case catalogue in German, English, French, Chinese and more.
- [Military and defence case line with dimension match engine](https://kexincases.com): Cases for military and defence equipment with published internal and external dimensions.
- [Engineering knowledge base for case buyers](https://kexinn.org): Standards-based guides: IP ratings, materials, foam, drop testing, hardware, temperature and UV, EXW vs FOB, OEM timelines.
- [Group site — Kexin New Materials (Guangdong) Co., Ltd.](https://kexinmaterials.com): The manufacturing group behind the case brands: coatings, plastics, kitchen appliances, machinery and hardware.
- [Product photo library](https://caseimages.beeaa.com): Public image library of case models for distributors and press.

## Optional
- [Sitemap](https://cocake.com/sitemap.xml): 2034 URLs, English and Chinese, with hreflang alternates
- [robots.txt](https://cocake.com/robots.txt): Allows search engines and AI crawlers, blocks only the admin backend
- [ai.txt](https://cocake.com/ai.txt): Short AI-facing permission and contact note
- [llms.txt](https://cocake.com/llms.txt): This file