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Fair · Accurate · Efficient
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About Us
Boss Testing is an independent third-party testing agency under the Yuantai Derun Group, established in 2019. It holds dual certifications from CMA and CNAS. The agency specializes in testing services for welded steel pipes, square and rectangular tubes, special-shaped pipes, and other products, covering mechanical properties, chemical composition, dimensional accuracy, zinc coating inspection, and more. We provide fair, accurate, and efficient testing and certification services to the industry.
CMA Certification
China Metrology Certification, possessing statutory testing qualifications
CNAS Certified
Accredited by the National Accreditation Service for Conformity Assessment (CNAS)
Independent Third Party
Fair, objective, and backed by reliable data.
Detection Scope
Product Type
- • Welded Steel Pipe
- • Square tube
- • Special-shaped steel pipes
- • Angle, channel, and I-beam steel
- • Steel structures, etc.
Mechanical Property Testing
- • Tensile Test
- • Impact test
- • Hardness Test
- • Crush Test
- • Bending Test
- • Drop-weight test
Chemical and Coating Testing
- • Chemical Composition
- • Neutral Salt Spray Test (NSS)
- • Acetic Acid Salt Spray Test (AASS)
- • Copper Accelerated Acetate Salt Spray Test (CASS)
- • Determination of Zinc Coating Weight
- • Galvanizing Uniformity Test
- • Non-Destructive Testing
- • Metallographic Testing
Service Capabilities
- • Inspection Period: 3-5 business days
- • Report issuance: 2 business days after testing is completed
- • Service area: Nationwide
Inspection Process
Delegate
Submit Inspection Request
Sample
Sample Collection and Registration
Detect
Professional Testing & Analysis
Generate Report
Generate Authoritative Test Report
Service Commitment
Fairness
Independently tested by a third party, free from external interference.
Accurate
Advanced equipment and professional staff ensure data accuracy
Efficient
Optimize the process to reduce detection time.
Compliance Statement: Independently tested by a third party. Data is authentic and reliable, fully compliant with applicable laws and regulations.
Commissioned Testing Consultation
For testing needs or questions, contact us for professional support.
Contact Us