Advanced Inspection & Measurement
We employ a comprehensive suite of inspection tools, including CMMs, optical measuring systems, and material analyzers, to verify dimensional accuracy, material integrity, and surface finish.
OUR QUALITY ASSURANCE
Where Quality and Reliability Converge in Custom Manufacturing
At Tongyong Industries, quality is engineered into every stage. Our dedicated quality team conducts inspections from pre-production through final delivery to support consistent output and reliable manufacturing. Supported by documented quality procedures and certified management systems, we help ensure that every prototype and production run meets consistent standards of precision, traceability, and reliability.
Detailed Inspection Documentation
Inspection documentation can include first article inspection records, material certifications, dimensional reports, and other project-specific quality documents as required.
Certified Management Systems
Our manufacturing entity, Shantou Tongyong Hardware Industrial Co., Ltd., holds ISO 9001, ISO 14001, and ISO 45001 management system certifications within the scopes stated on the respective certificates.
Dedicated Quality Engineering
Our quality team supports projects from design review through production, applying process controls, inspection procedures, and continuous improvement practices to reduce defects and maintain consistent quality.
Quality Certificates
ISO-Certified Management Systems
Shantou Tongyong Hardware Industrial Co., Ltd. maintains certified management systems for quality, environmental management, and occupational health and safety in accordance with ISO 9001, ISO 14001, and ISO 45001, within the scopes stated on the respective certificates.
- ISO 9001-certified quality management system
- Standardized processes and clear documentation
- Continuous improvement through documented quality procedures
- ISO 14001-certified environmental management system
- Support for project-specific quality and inspection requirements
- Regular internal reviews and periodic certification audits
Our Quality Control Process
Quality Assurance at Every Step
From incoming materials to final assembly, we apply inspection and verification throughout the entire manufacturing process.
01
Incoming Material Inspection
Verify material specifications, surface condition, and material consistency before production.
02
Dimensional Inspection
Check critical dimensions and features to ensure they meet drawing requirements.
03
Bending Angle Verification (for formed parts)
Measure bend angles and forming accuracy to ensure shape consistency.
04
Welding Quality Inspection (for welded assemblies)
Inspect weld appearance and joint strength to ensure welding consistency.
05
Surface Finishing Inspection
Verify surface appearance, coating consistency, and finish quality to meet requirements.
06
Assembly Inspection
Check fit, alignment, function, and final appearance before delivery.
FAQ
Frequently Asked Questions
Find quick answers to the most common questions about our products, services, and processes.
What types of sheet metal parts do you manufacture?
We manufacture custom sheet metal parts including enclosures, brackets, panels, cabinets, covers, laser cut parts, bent parts, welded assemblies, and precision components based on your drawings or samples.
What materials can you work with?
We commonly process stainless steel, carbon steel, aluminum, galvanized steel, copper, brass, and other sheet metal materials according to your product requirements.
What industries do you serve?
Our parts are used in electronics, medical equipment, industrial machinery, energy, telecom, automation, and many other manufacturing fields.
Can you support custom designs and prototypes?
Yes. We support prototype development, small-batch production, and mass production, and can provide DFM suggestions to improve manufacturability and cost efficiency.
What is your minimum order quantity (MOQ)?
MOQ depends on the part structure, material, process, and production method. Send us your drawings and quantity requirement, and we will provide a practical quotation plan.
How do you ensure product quality?
We control quality through drawing review, material inspection, process inspection, dimensional checks, surface inspection, and final quality confirmation before shipment.
What are your lead times?
Lead time varies by complexity and quantity. Prototype orders are usually faster, while larger production batches are scheduled according to material, tooling, finishing, and inspection needs.
Do you ship internationally?
Yes. We can arrange international shipping and support global customers with export packaging, delivery coordination, and order follow-up.
Get a Quote
Fill out the form below and upload your drawings.
