OEM MFG LIMITED523597About UsBuilding C No. 41 Guangming South Road Wu xing Xia du New Village Xiegang Town, Dongguan City China 523597OEM MFG was established in 2008 Shenzhen city as a professional sheet metal & Plastic custom manufacturer. Expand production scale, the factory moved to Xiegang Town, Dongguan in June 2018. Now we have over 2,000 square foot facility. We have two branch factories dedicated to sheet metal, Plastic Manufacturing services, Assembly Manufacturing services. As these, we can solemnly assure you, on-time delivery, especially the Quick Turn CNC milling & turning Prototypes 100% on-time delivery. We got UL and ISO9001 certification, to ensure that we produce high-quality sheet metal & Plastic and meet Ro

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Quality Inspection


CNC Machining standards

We follow ISO 2768 standards for CNC Machining.

A metal part in the middle of being machined
Limits for nominal size Plastics (ISO 2768- m) Metals (ISO 2768- f)
0.5mm* to 3mm ±0.1mm ±0.05mm
Over 3mm to 6mm ±0.1mm ±0.05mm
Over 6mm to 30mm ±0.2mm ±0.1mm
Over 30mm to 120mm ±0.3mm ±0.15mm
Over 120mm to 400mm ±0.5mm ±0.2mm
Over 400mm to 1000mm ±0.8mm ±0.3mm
Over 1000mm to 2000mm ±1.2mm ±0.5mm
Over 2000mm to 4000mm ±2mm

All parts are deburred. Tightest achievable tolerance is +/-0.01mm and is dependent on part geometry.

Download CNC machining standards


3D Printing standards

A man with a blue glove on holding 3D printed parts
Process Tolerance
FDM ± 0.5% with a lower limit of ± 0.5 mm (± 0.020")
SLA ± 0.5% with a lower limit of ± 0.15 mm (± 0.006")
SLS/MJF ± 0.3% with a lower limit of ± 0.3 mm (± 0.012")

Download 3D printing standards



Manufacturing Partner assessment

Each of our Manufacturing Partners goes through an extensive onboarding process before being brought onto the Hubs network, including:


The performance of our Manufacturing Partners is continuously monitored by our Supply team to ensure that all orders are completed in accordance with the Hubs Manufacturing Standards.

 Man measuring metal machined part with a caliper


We work with a vast number of ISO 9001-certified Manufacturing Partners. ISO certifications need to be requested before placing an order. Please contact your Account Manager or sales@hubs.com.

Our Manufacturing Partners also have the following certifications for CNC machining:

  • ISO 9001
  • AS 9100
  • ISO 13485
  • ISO 14001

Material certifications, data sheets, and test reports are available on request.


Resolving quality issues

Should your order not meet specifications, you will be able to raise any issues within 5 business days of receiving your parts. Our order fulfillment team will resolve these issues as quickly as possible, typically within 1-3 business days.

Tech Support

  • Full set equipment one-stop service
  • 15 years experienced engineers
  • Well trained,long term relationship techinist
  • Fast lead time 1-7 days  
  • ISO 9001 certificated all problem controlled before shipping 
  • IGS STEP XT Reverse Engineering.
  • Own tooling, powder coating Dpt
  • Original manufacturer with international sales Dpt.
  • Advise for turning perfect design into production.
  • Far sighted Boss
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