What if I need engineering design changes after production starts?

Our flexible engineering change order (ECO) process allows modifications at any stage. Changes are documented through our ERP system, and our team will provide impact analysis on cost/timing before implementation.

Can you handle assemblies beyond individual components?

Yes. We provide full assembly services including: Precision mechanical assembly Ultrasonic welding Epoxy bonding Testing and packaging We maintain cleanroom environments for medical and optical assemblies.

What shipping options do you offer?

We work with global logistics partners (DHL, FedEx, UPS) for air freight and provide: Express shipping: 3-5 days internationally Sea freight: For large-volume orders Incoterms: EXW, FOB, DAP, DDP based on your needs

Do you support low-volume and high-volume production?

Yes. Our capabilities range from 1-piece prototypes to million+ annual production runs. We optimize manufacturing strategies based on quantity: CNC machining for low volumes, and injection molding/stamping for high volumes.

How do you ensure quality control?

We implement a multi-stage quality process: In-process inspection: CMM (ZEISS), optical comparators Material certification: Spectrometer verification Final inspection: CT scanning for internal features Full documentation: PPAP, ISIR, and material traceability reports

FAQ - Dawang precision

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FAQ

Q What if I need engineering design changes after production starts?

A Our flexible engineering change order (ECO) process allows modifications at any stage. Changes are documented through our ERP system, and our team will provide impact analysis on cost/timing before implementation.
Q Can you handle assemblies beyond individual components?

A
Yes. We provide full assembly services including:

Precision mechanical assembly

Ultrasonic welding

Epoxy bonding

Testing and packaging

We maintain cleanroom environments for medical and optical assemblies.
Q What shipping options do you offer?

A
We work with global logistics partners (DHL, FedEx, UPS) for air freight and provide:

Express shipping: 3-5 days internationally

Sea freight: For large-volume orders

Incoterms: EXW, FOB, DAP, DDP based on your needs
Q Do you support low-volume and high-volume production?

A Yes. Our capabilities range from 1-piece prototypes to million+ annual production runs. We optimize manufacturing strategies based on quantity: CNC machining for low volumes, and injection molding/stamping for high volumes.
Q How do you ensure quality control?

A
We implement a multi-stage quality process:

In-process inspection: CMM (ZEISS), optical comparators

Material certification: Spectrometer verification

Final inspection: CT scanning for internal features

Full documentation: PPAP, ISIR, and material traceability reports

Q What is your typical lead time for prototypes and production?

A
Prototypes: 5-7 days (CNC), 3-5 days (3D printing)

Low-volume production: 2-3 weeks

High-volume production: 4-6 weeks (depending on quantity)

Expedited options are available for urgent projects.
Q Can you help with material selection?

A
Absolutely. Our engineers will recommend optimal materials based on your application:

Medical: ISO 5832-3 titanium, PEEK, 316L stainless steel

Aerospace: Ti-6Al-4V, Inconel 718, aluminum 7075

Automotive: Anodized aluminum, engineering plastics

Consumer Electronics: ABS, PC, magnesium alloys
Q What file formats do you accept for manufacturing?

A We prefer STEP, IGES, or X_T formats for accurate 3D model translation. For 2D drawings, PDF or DWG formats with clear tolerancing and critical dimensions are accepted. Our team will perform DFM (Design for Manufacturability) analysis upon file submission.
Q How do I request a quote for custom parts?

A Simply email us your CAD drawings (STEP/IGES format), material specifications, quantity requirements, and any quality standards (e.g., ISO, ASME) to peng@dawangprecision.com. Our engineers will review your project and provide a formal quote within 1-2 business days.
Q What industries does Dawang Precision primarily serve?

A We specialize in precision manufacturing for medical devices, aerospace, automotive, consumer electronics, new energy, industrial automation, and robotics. Our ISO 13485 (medical), IATF 16949 (automotive), and AS9100 (aerospace) certifications enable us to meet industry-specific requirements.