QUALITY CONTROL

Quality Control

From incoming inspection to final delivery, our quality system focuses on safety, durability and stable long-term performance.

TESTING

Key Test Items

We keep a focused set of inspection items covering sealing performance, durability, coating consistency and corrosion resistance.

Raw materials are sampled and reviewed to confirm baseline performance before fabrication.

Checks coating continuity to detect pinholes, breaks or hidden discontinuities.

Verifies coating adhesion and durability under mechanical impact conditions.

Measures coating thickness to ensure it stays within the required control range.

Checks visual consistency between batches to keep project appearance uniform.

Validates resistance and long-term stability under acidic and alkaline conditions.

CERTIFICATIONS

This section presents patents, management certificates and compliance documents together in a complete, ordered view for qualification review.