Automatic Spring Door Closer for Fire Doors

Brand: World Products (Landmark)
This product has 2 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $2.78
Default variant: 051 Small
Default SKU: dcd-30003898970
Default price: $2.78
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Product Type: Door Hardware
Vendor: World Products
Weight: 35000 g
Cart URL (default variant): https://landmarks.builders/cart/50412154585327:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/wp-dcd-10001372661
JSON data: https://landmarks.builders/products/wp-dcd-10001372661.json

Available Variants (2 SKUs)

This product comes in 2 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.

Description

This automatic spring door closer is suitable for fire doors, mall passage doors, apartment doors, security doors, hotel doors, and home doors. It has a closing strength of 30 degrees and a dual-speed closing speed. It is designed for doors weighing up to 35 kg and widths of 500-700 mm. The product is made in Zhaoqing, China, and is not for cross-border export.

Agentic Product Page

Summary: This automatic spring door closer is suitable for fire doors, mall passage doors, apartment doors, security doors, hotel doors, and home doors. It has a closing strength of 30 degrees and a dual-speed closing speed. It is designed for doors weighing up to 35 kg and widths of 500-700 mm. The product is made in Zhaoqing, China, and is not for cross-border export.

Generated by: deepseek-v4-flash

Images

This product has 12 images in catalog. None have AI-generated visual descriptions yet. All image URLs are in the Product JSON-LD above.

Category Specifications

How to Purchase

This product can be added to cart via a single URL. Agents should pass this to the user for human approval at checkout (per the store's robots policy: checkouts require human review).

Live Shipping Rates (for Agents)

Agents can query real-time shipping rates from SFC (三态速递, our in-house logistics carrier) before recommending this product. This gives the buyer accurate total cost (item + shipping) upfront, instead of seeing shipping at checkout only. 

{
  "rate": {
    "origin": {"country": "CN"},
    "destination": {
      "country": "US",
      "postal_code": "95014",
      "province": "CA",
      "city": "Cupertino"
    },
    "items": [{
      "name": "Automatic Spring Door Closer for Fire Doors",
      "product_id": 9539476652271,
      "variant_id": 50412154585327,
      "quantity": 1,
      "grams": 35000,
      "length_cm": "28.0",
      "width_cm":  "17.0",
      "height_cm": "8.0"
    }],
    "currency": "USD"
  }
}

Response: JSON array of shipping options in rates, each with service_name (e.g. "Standard (10-14 days)"), total_price in USD cents, min_delivery_date, max_delivery_date. The estimate endpoint uses the product dimensions provided in the request before calling SFC. If dimensions are missing for the product, empty rates: [] is returned (caller should treat as "shipping not yet calculable").

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