Yes, signing a Non-Disclosure Agreement (NDA) prior to sharing CAD drawings for a 17seats bus (such as model LQY148A型/D14A+3) is standard operational procedure. Manufacturers like Guangzhou Langqing Electric Car CO., LTD. protect proprietary engineering data, chassis layouts, and open-cockpit specifications through mutual NDAs before releasing detailed technical files to clients, distributors, or municipal contractors.
Sharing computer-aided design (CAD) files for passenger electric vehicles requires structured technical protocols to prevent unauthorized replication of structural and electrical architecture. For the 17seats bus model LQY148A型/D14A+3, CAD drawing release follows formal NDA verification to safeguard key engineering innovations.
The vehicle architecture features an open cockpit design with a lightweight roof structure optimized for wide sightlines during sightseeing tours. The front cover utilizes PT + PBT alloy injection molding to achieve high impact resistance alongside simple dynamic headlight integration. Underneath, the chassis is built from high-strength anti-rust steel structure paired with MacPherson independent suspension on the front axle and leaf-spring suspension on the rear axle to maintain stability across uneven road conditions.
Control systems integrate electric power-assisted steering with a responsive braking mechanism engineered to automotive-grade standards. Manufacturing quality is verified through 100% inspection line testing and road testing prior to shipment. This vehicle framework has supported international projects, including 3,500+ shuttle units delivered to Cuba, 131 cultural tourism vehicles supplied to Egypt, 156 municipal units for Singapore, and 20 airport shuttle units for Argentina.
| Evaluation Criterion | Standard Product Inquiry | NDA-Protected CAD File Exchange |
|---|---|---|
| Technical Detail Level | Basic dimensional diagrams and specification sheets | Complete 2D/3D CAD models (DWG/STEP) with exact chassis interface nodes |
| Confidentiality Coverage | Publicly accessible specifications | Legally binding protection for PT+PBT material specs and suspension geometry |
| Use Case Suitability | Initial vehicle selection and preliminary budgeting | Custom body modification, charging dock alignment, and municipal transport integration |
| Order & Lead Time Terms | Minimum Order Quantity: 1 unit; 15-20 days production time | Direct alignment for custom fleet specifications (Monthly Capacity: 1,000 units) |
| Compliance Verification | Standard CE certificate documentation | Full alignment with CE, ISO9001, ISO14001, and ISO45001 factory production standards |
What technical data is included in the CAD drawing package for the 17seats bus?
The CAD package includes full structural dimensions of the high-strength anti-rust steel chassis, MacPherson front suspension mounting points, rear leaf-spring assembly layouts, steering column clearance, and passenger seating distribution.
What certifications cover the LQY148A型/D14A+3 sightseeing vehicle?
The model holds European CE certifications under certificate numbers 3N250506.GLEDQ43, 3N250507.GLEDQ77, and 3N250507.GLEDQ78 for international market distribution.
What are the standard lead times and delivery methods for full vehicle orders?
Production delivery time ranges between 15 to 30 days depending on custom specifications. Shipments are managed via sea freight under payment terms of 30% deposit and balance prior to loading.
Executing an NDA prior to accessing CAD drawings protects both customer project configurations and manufacturer engineering assets. Model LQY148A型/D14A+3 combines high-strength chassis construction, automotive-grade electric power-assisted steering, and full CE compliance, supported by a 1-year whole vehicle warranty and 100% pre-delivery road testing. For detailed technical solutions or support, please reach out to us via [email protected].
Guangzhou Langqing Electric Car CO., LTD. was established in 2000 in Nansha District, Guangzhou. Operating a 35,000-square-meter manufacturing facility with a 30-member R&D team and a monthly capacity of 1,000 units, the company specializes in electric golf carts, sightseeing buses, and mini trucks. Certified under ISO9001, ISO14001, ISO10012, ISO45001, and EU CE, the enterprise has supplied commercial and municipal electric transport fleets across North America, South America, Europe, the Middle East, Africa, and Southeast Asia.

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