Support Customization
TONGGUANG QUALITY
- Customized processing
- Made to drawing
- Made to sample
- Competitive volume pricing
Q01Page header
QUALITY ASSURANCE
Quality commitments begin with inspectable processes.
Tongguang's company brochure presents ISO 9001 quality management certification, optical sorting and material-testing equipment. Inspection items and sampling ratios are confirmed for each order.
Q02Customization & quality foundations
QUALITY FOUNDATION
From custom requirements
to controlled execution.
Drawing and sample review, material selection, surface treatment and inspection are evaluated and executed around each project's requirements.
Strict Selection of Materials
TONGGUANG QUALITY
- Made from high-quality materials
- Materials meet industry standards
- No cutting corners or inferior materials
- Trustworthy
Surface Treatment
TONGGUANG QUALITY
- Structural stability
- Smooth surface
- Rust resistant
- Long service life
Quality Assured
TONGGUANG QUALITY
- Advanced testing equipment
- Multi-stage inspection process
- Professional inspection personnel
- Strict testing standards
Q03Certificate & inspection flow
View full certificate ↗INSPECTION FLOW
Typical Quality-Control Stages
- 01Incoming material and specification review
- 02First-article dimensional approval
- 03In-process inspection
- 04Batch optical sorting where applicable
- 05Pre-shipment inspection and packaging approval
These stages summarize a typical workflow based on the company brochure. Individual products may use different inspection plans. Certificate scope and validity remain subject to verification with the issuing body.
The reference image illustrates an inspection action only. Actual gauges, inspection items and acceptance criteria follow the approved order requirements.