Chongqing Seatrend Technology & Development Co., Ltd. — Supplier
About Chongqing Seatrend Technology & Development Co., Ltd. - Locks & Handles Supplier in China
China, specifically the Chongqing region, lists eight active products across three categories: Locks & Handles, Magnets & Magnetic Products, and Mobile Phone Accessories. The catalogue includes six smart door lock models - a high‑quality smart door lock with free software, a multifunctional door lock with wireless remote, an intelligent door lock with doorbell call, an automatic smart door lock fingerprint, an electronic smart door lock with free software, and another smart lock variant. It also features two magnetic accessories: a magnetic car mount holder and a magnetic phone holder for car use, the latter identified with HS code 8505.11 and built from Neodymium N52 magnet housed in ABS/metal. The remaining entry is a generic mobile phone holder for car installation.
Product Range and Specialties of Chongqing Seatrend Technology & Development Co., Ltd.
The smart door lock models belong to the HS 8302 family (door locks) and incorporate electronic control units that are classified under HS 85. Typical industry specifications for such locks include ANSI/BHMA Grade 1 or Grade 2 mechanical strength, IP65 ingress protection, battery capacity of 1500‑2000 mAh (often 18650 Li‑ion), AES‑128 encryption, and compliance with FCC Part 15 for wireless modules. Magnetic car accessories fall under HS 8505.11 (magnetic apparatus). In the market, N52 neodymium magnets are standard, delivering pull forces of 6‑10 kg, housed in ABS or metal casings to meet automotive temperature ranges of - 30 °C to +85 °C. Buyers also expect standard dimensions for car‑mount holders (approximately 70 mm × 30 mm × 20 mm) and packaging of 20‑30 kg per carton suitable for container loading.
Trade and Export Information - Chongqing Seatrend Technology & Development Co., Ltd.
China is a major exporter of electronic door hardware and magnetic mounting accessories. Primary import regions for these categories include Europe (Germany, France, UK), North America (USA, Canada), and Southeast Asian markets such as Vietnam and Thailand. The door‑lock items are classified under HS chapter 83 (locks and latches) while magnetic holders use HS 8505.11. International buyers typically require CE marking for European markets, FCC certification for the United States, and RoHS compliance for both regions. Export shipments are commonly packed in 20‑ft or 40‑ft containers with cartons stacked to a gross weight of 20‑25 kg per carton, and FOB or CIF incoterms are used. Chinese exporters often provide pre‑shipment inspection reports from agencies such as SGS or Intertek, and may need to submit material safety data sheets (MSDS) for the neodymium magnets.
Sourcing from Chongqing Seatrend Technology & Development Co., Ltd. - Buyer Guidance
When sourcing these smart locks, request the CE or FCC test report, the product’s ANSI/BHMA grade certification, battery specifications, and the firmware version used for the lock’s software. For the magnetic car mounts, ask for a pull‑force test report, material safety data sheet for the N52 magnet, and verification of ABS or metal housing compliance with automotive temperature standards. Verify that the supplier can provide product photographs, a 3‑month lead‑time estimate, and typical MOQ of 500 units per model. Confirm packaging details - double‑wall cartons, palletized on standard Euro‑pallets, and that the goods will be sealed according to CIQ export regulations before shipment.
Frequently Asked Questions About Chongqing Seatrend Technology & Development Co., Ltd.
What HS codes are used for the products listed by Chongqing Seatrend?
The magnetic phone holder for car use is listed under HS code 8505.11. The smart door lock models fall under the HS 8302 family for locks and latches, while other electronic components are classified within HS 85.
Which certifications should a buyer request for the smart door locks?
Buyers should request CE marking for European markets, FCC Part 15 compliance for the United States, and RoHS documentation to confirm restriction of hazardous substances. ANSI/BHMA grade certification is also standard for mechanical strength verification.
What material is used in the magnetic car mount holder?
The holder uses a Neodymium N52 magnet encased in an ABS/metal housing, which provides a pull force typically between 6 kg and 10 kg and meets automotive temperature tolerances.
What are the typical packaging specifications for these items?
Products are usually packed in double‑wall cardboard cartons weighing 20‑30 kg each, stacked on Euro‑pallets for container loading. Containers are commonly 20‑ft or 40‑ft, with the total volume calculated based on the number of cartons.
What is a common minimum order quantity (MOQ) for these products?
The supplier’s catalogue indicates an MOQ of about 500 units per model, which aligns with typical export batch sizes for electronic hardware from China.
How long is the lead time from order to shipment?
Lead times reported by similar Chinese manufacturers range from 30 to 45 days after order confirmation, depending on product complexity and required certifications.
What documentation is needed for customs clearance of the magnetic accessories?
Customs clearance generally requires the commercial invoice, packing list, HS code declaration (8505.11), and a material safety data sheet for the neodymium magnet. If the buyer requires, a pre‑shipment inspection certificate can be provided.
Can samples be obtained before placing a full order?
Yes, the supplier can provide functional samples of the smart door locks and magnetic holders. Buyers should request a sample quotation and specify the testing criteria such as pull‑force for magnets or encryption protocol for locks.




























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