Crystal 4 Company Limited
Active Member
12 Years
Guangdong, Shenzhen
Since 1947
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Car Emergent Jump Starter
Mobile Phone Armband
mobile phone Cable
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mobile phone water proof bag
OTG USB flash drive
Personal theatre VR headsets
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Car Emergent Jump Starter

 (11)

Mobile Phone Armband

 (15)

mobile phone Cable

 (9)

Mobile Phone Car Charger

 (19)

Mobile Phone Car Holder

 (14)

Mobile Phone Power Bank

 (25)

mobile phone water proof bag

 (2)

OTG USB flash drive

 (19)

Personal theatre VR headsets

 (1)

Why Can We Always Ensure Excellent Quality

Quality Control

Electronic testing Electronic testing Quality engineering department

QC/Technical Support:
We have three or four quality engineers make sure the design improved when it need to reduce the defects when produce. The electronic parts and plastic parts are checked before they come into material warehouse, the assembled goods is checked one by one from function and appearance.

QC Staff:
4 to 5

Materials/Components:
Our R&D center designed circuit plastic parts and place order to quality supplier, we assure about the quality.

Procedures/testing Details:
Quality control personnel who are all experts in their respective product assignments check the quality at every stage of production, from the incoming raw materials to the finished product.

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