Equipment and spare partsBrowse manufacturers Search by manufacturerPRODUCT LINKS AND PROJECT REQUIREMENTS
AFZHAN is the Chinese B2B platform 智慧城市网, hosting listings from different companies. We help define equipment enquiries using a specific listing, model and project requirements.
Choose the information relevant to your enquiry. These categories describe sourcing tasks involving products listed by different companies.
AFZHAN is the address of 智慧城市网, formerly 安防展览网, a Chinese B2B information platform. Its listings come from different companies. Start with the exact product listing, then identify the actual manufacturer and model from the seller details, nameplate and documentation.
Keep the original Chinese company name in your enquiry. It helps distinguish the business behind a listing from the platform that hosts it.
Send the full listing URL and describe whether you need the complete equipment, a specific assembly or a consumable. A listing may illustrate several versions, so mark the required version on a screenshot and attach its specification.
Include the quantity, intended application and delivery destination. We can then separate the product you selected from optional accessories, installation materials and other items shown in the same listing.
Photograph the entire equipment nameplate, then take a close view of the model and serial number. Also photograph the label on the assembly being replaced. Keep suffixes and option codes exactly as written.
A machine model and a component model can identify different things; supply both when available. Clear, uncropped pictures reduce ambiguity when a character could be a letter, a number or a punctuation mark.
For a camera, recorder or associated accessory, provide the actual brand and full model. Explain whether the project replaces an existing unit or adds equipment to an operating system. Include the devices already installed, the intended mounting location and connection requirements.
List brackets, power supplies and cables separately so the requested scope is clear. For a replacement, photographs of the old unit and its connectors are especially useful.
For readers, controllers, locks or entry devices, describe the existing access control system and the role of the requested item. Supply the controller model, software details available to you and photographs of terminals and mounting points. A wiring diagram helps define the enquiry.
Specify how many entry points are involved and whether the request covers one replacement component or a complete set for a new installation.
For a sensor or instrument, begin with its label and the measurement task. Copy the required range, units, electrical supply, output and connection details from your documentation. Describe the installation environment and measured medium.
If replacing an existing instrument, include photographs of its connection and mounting position. For a new project, attach the measurement requirements rather than selecting solely from a similar product photograph.
Provide the exact model for a network device or power supply and identify the equipment it serves. Include a clear photograph of the connection panel and electrical label. State the number of connected devices, required interfaces, mounting arrangement and available cabinet space.
When using a platform listing as a starting point, list your mandatory functions separately from optional features and accessories described by the seller.
Use one row per item when several products are required. Include the equipment, component name, exact designation, quantity and a source link or drawing reference. Keep the same row numbers in your attachments and photographs. Mark urgent items and identify anything intended for a spare stock.
If the same component is used on several machines, show that relationship explicitly instead of combining different assemblies under a single generic description.
The company publishing a listing and the brand marked on a product may have different names. Record both in their original spelling and include the company page if available. This distinction is useful when several businesses publish similar product descriptions.
Keep any technical document associated with the listing and identify which item it describes. We use those references to define the enquiry and the manufacturer information that needs checking.
If an item is identified by a position number, attach the complete diagram and the corresponding parts list. Highlight the requested item while keeping the assembly designation, drawing title and revision visible. State whether you need a single component, the whole assembly or associated fasteners.
Preserve dimension units. A cropped picture without its reference information can make it difficult to connect the requested part to the correct equipment.
Explain what needs to remain unchanged when replacing an installed assembly: mounting position, connections, controls or assembly scope. Include photographs before removal and of the removed item if already available. Note any earlier modifications to the equipment and identify connected devices.
Describe the reason for replacement without assuming that a visually similar product is the correct version. This gives the enquiry a clear technical starting point.
For a new installation, start with the task rather than an assumed model. Describe what the equipment must do, where it will be installed and which existing systems it will connect to. Product links can serve as examples, while your mandatory requirements remain a separate list.
Include a layout if available, equipment quantities and the intended scope of supply. Distinguish essential functions from preferences that can be discussed during selection.
List the main product, components and accessories separately. A product image can show items you already own as well as items needed for the project. Assign a quantity to each requested item and mark anything outside the intended scope.
Include documentation and language requirements in the same enquiry. A clear list makes it easier to compare a proposed configuration against your actual installation requirements before a purchasing decision.
Attach the photographs, diagrams and data sheets relevant to each item. Name files using the same item numbers as your list and include a close photograph of any difficult label. Retain original files where possible, since compressed images can obscure designation characters.
Indicate which information comes from your installed equipment and which comes from a candidate listing. Also identify any unanswered technical points that the selection process needs to resolve.
Give a quantity and unit for every item, together with the delivery destination. Explain whether one unit means a device, a kit or an assembly. Separate immediate replacement needs from spare stock and distinguish deliveries for different sites.
State the desired arrival date as a project requirement. Known receiving or unloading restrictions are also useful when planning the supply scope and gathering the information required for a quotation.
If you have shortlisted several listings, send them together with one common requirements list. Compare exact designations, quantities and included accessories rather than listing titles alone. Mark the differences you have already found and identify the features essential to your project.
Keep each candidate linked to its own documentation. This helps structure a discussion around comparable configurations and the intended result of the replacement or new installation.
Begin with a short description of the task: replacement part, additional equipment or a new installation. Follow with the exact model, quantity, listing link and delivery destination. Put detailed requirements in an attachment if necessary.
Provide a suitable contact for clarification of the item or configuration. This structure keeps the enquiry readable while preserving the information needed to check what is being requested and what still needs clarification.
We do not claim to be an official AFZHAN partner. Price, availability, lead time, compatibility and required documents must be established for the specific item and quotation. A listing on the platform alone does not establish the manufacturer or configuration of the product.
These details need to be checked against the product identification, supporting documentation and the scope agreed for the enquiry.
Describe the purpose, operating environment, installation location and required scope. Separate mandatory specifications from acceptable options. Include a site layout, related devices and links to candidate products.
Explain whether the project involves a new system, additional equipment or replacement of an existing installation.
Attach the equipment nameplate and the component identification. Mark the required item on a diagram and specify its quantity and assembly scope. Note any previous changes to the equipment and provide information on the version currently installed.
For a multi-item enquiry, link each photograph and document to its list item.
A product link, model, quantity and task description provide a starting point for selection. Attach photographs or a technical document, specify the delivery destination and leave a suitable contact for clarification. Where several configurations are being considered, identify the requirements that all candidates must satisfy.
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