Quality Control China

We provide professional factory pre-shipment quality Control & factory review services
Trust us for meticulous inspection in quality control. Elevate your product standards.

Who Needs Quality Control Services?

Quality control is essential across various sectors. Whether you are a small startup or a large corporation, Our services are designed to ensure that your products meet the highest standards of quality and safety. Here’s who can benefit from our expertise.


From electronics to clothing, ensuring your products are defect-free and compliant with international standards is crucial for your brand's reputation and customer satisfaction.

Importers and Exporters

Guarantee the quality and safety of products being shipped across borders. Our services can help you navigate complex regulatory requirements and avoid costly customs delays.


Ensure the products you sell meet your quality criteria and regulatory standards, reducing returns and increasing customer trust.


With the rise of online shopping, ensure that the products listed on your platform are of high quality and meet consumer expectations to maintain credibility and customer loyalty.

Quality Control Inspection Service Process

Factory Check

1. Factory Audit

We conduct factory audits to minimize risk, ensuring legality, scale, trade, production capacity, and quality control inspection.

First Article Inspection

2. First Article Inspection

We prioritize your product’s success through first article inspection, ensuring precision and swift issue resolution.

First Article Inspection

3. During Production Check

Once production is at full capacity, we conduct random inspections at 20-60% completion to maintain consistent quality levels throughout the cycle.

Laboratory Testing

4. Laboratory Testing​

Laboratory Testing services ensure compliance with performance, safety, quality, and inspection standards in quality control.

Pre-Shipment Inspection

5. Pre-Shipment Inspection

Inspection at 90% production completion – last chance for corrective action. Safeguard products from costly import issues.

Container Loading Check

6. Container Loading Check

Container Loading Check ensures that goods meet order requirements for quality, quantity, and packaging.

Why Choose Us?


Our team brings together years of experience and deep industry knowledge.


Leveraging the latest in quality control technology for accurate and reliable results.


Customizable solutions tailored to meet the specific needs of your business.

Client Focus

We prioritize your needs and work tirelessly to ensure your satisfaction.

Utilizing ANSI Z1.4 2003 Sampling Tables for Superior Quality Assurance

We recommends using the ANSI Z1.4 2003 sampling tables to determine the number of units for random evaluation. If you don’t have specific sampling requirements, WOZO Sourcing can help you choose the best plan for your needs.

The samples are inspected based on the predetermined plan to evaluate their appearance, functionality, and workmanship. WOZO Sourcing conducts 製品 inspections in accordance with the established program, categorizing defects as major, minor, or critical based on the inspection plans.

The acceptable quality level (AQL) is evaluated by totaling the number of defects and using the recommended accept/reject criteria within the sampling plan.

China Quality Control Inspection Services

Get in Touch for Exceptional Quality Control Services

Ready to ensure your products meet the highest standards of quality? Contact us today to learn how Precision QC can support your business. Whether you have a specific requirement or need guidance on where to start, our friendly team is here to help.



Sourcing Services

China Sourcing Services help businesses find and partner with reliable suppliers in China.

Amazon FBA準備サービス

Amazon FBA Prep Services ready products for Amazon fulfillment, ensuring compliance.


Supplier Verification ensures the reliability and quality of suppliers through thorough checks.


Custom Manufacturing tailors products to meet specific needs, ensuring unique solutions.


Quality control refers to the process of ensuring that products or services meet certain standards of quality. This involves monitoring and inspecting the production process, identifying any defects or deviations from the desired specifications, and taking corrective actions to prevent substandard products from reaching the customer.

Quality control is essential for maintaining customer satisfaction, reducing waste and rework, and upholding the reputation of a business.

It encompasses various techniques and tools such as statistical process control, inspection checklists, and quality assurance procedures to ensure that the final output meets the required criteria for performance, reliability, and safety.

Overall, quality control is a critical aspect of production and service delivery that helps to uphold the integrity and consistency of a company’s offerings.

Quality control can be categorized into four main types:

  1. Inspection: This involves physically examining a product to ensure that it meets certain standards and specifications.
  2. Testing: Products are subjected to various tests to assess their performance, durability, and reliability.
  3. 品質保証: This type of quality control focuses on preventing defects and errors in the production process through the implementation of standards and procedures.
  4. Quality Improvement: Continuous efforts to enhance the production process and product quality through feedback, analysis, and implementation of best practices. These four types of quality control work together to ensure that products meet the desired level of quality and consistency.

Quality Assurance (QA) and Quality Control (QC) are two distinct processes that are essential in ensuring the quality of a product or service.

QA focuses on preventing defects and issues from occurring by implementing processes and standards, while QC is more concerned with identifying and fixing defects after they have occurred.

In other words, QA is proactive, aiming to avoid problems before they arise, while QC is reactive, addressing problems that have already occurred.

Both processes are crucial in maintaining high standards of quality, with QA ensuring that the right processes are in place, and QC ensuring that the processes are being followed and the end product meets the required standards.

A Quality Control (QC) professional is responsible for ensuring that products and processes meet the necessary quality standards.

This involves conducting inspections, tests, and evaluations to identify any defects or deviations from specifications.

Additionally, a QC professional may also be involved in developing and implementing quality control procedures, analyzing data to identify trends or areas for improvement, and communicating with production teams to address quality issues.

Overall, the role of a QC professional is crucial in maintaining high-quality standards and ensuring customer satisfaction.

Quality control is ensured through a combination of processes and measures aimed at maintaining and improving the quality of products or services.

This includes implementing quality standards, conducting regular inspections and audits, providing training to employees, and continuously monitoring and analyzing performance data.

Additionally, feedback from customers and stakeholders is crucial in identifying areas for improvement and ensuring that quality standards are met.

By integrating these strategies, organizations can effectively manage and maintain high levels of quality control.

Quality control plays a crucial role in ensuring the quality of products and services by:

  1. Establishing and enforcing quality control procedures to meet customer and regulatory standards.
  2. Conducting inspections and tests to identify defects and deviations from quality standards.
  3. Monitoring production processes to improve and prevent defects.
  4. Documenting quality issues and collaborating with relevant departments to resolve them.
  5. Providing training to ensure consistent adherence to quality standards.

The 4 C’s of quality control are criteria, consistency, control、 そして continuous improvement. These four elements are essential in ensuring that products or services meet the required standards and specifications.

Criteria refers to the specific standards and benchmarks that need to be met, while consistency emphasizes the need for uniformity and reliability in the production process.

Control involves monitoring and managing the production process to prevent defects or errors, and continuous improvement emphasizes the ongoing effort to enhance quality and efficiency.

By focusing on these 4 C’s, organizations can maintain high levels of quality control and deliver superior products or services to their customers.

A common example of a QC (Quality Control) is in the manufacturing industry, where products are inspected and tested to ensure they meet certain quality standards before being released to the market.

This can involve physical inspections, measurements, and performance testing to identify any defects or deviations from specifications.

For example, in the automotive industry, a QC process may involve checking the dimensions and appearance of car parts, as well as testing their functionality to ensure they meet safety and performance standards.