Precise measurement,
reliable results
Inspection Equipment
Accurate Measurement. Reliable Quality.
ZZ Steel is equipped with advanced inspection and testing equipment to ensure that every product meets international standards and customer requirements. We strictly control every detail from raw materials to finished products.
Industry-leading
inspection devices
Comprehensive testing
capabilities
Experienced inspectors
ensure quality
Our Inspection Equipment
3D Coordinate Measuring Machine
High-precision 3D measurement for complex components and assemblies.
Measuring Range: 1200 × 2000 × 1000 mm
Accuracy: 0.001 mm
Brand: Hexagon Global S
Spectrometer
Rapid analysis of chemical composition of metal materials.
Elements: C, Si, Mn, P, S, Cr, Ni, Mo, etc.
Test Time: < 3 seconds
Brand: OES Oxford
Digital Caliper
Precision measurement of dimensions, thickness and gaps.
Range: 0–500 mm
Accuracy: 0.01 mm
Brand: Mitutoyo
Micrometer
High-precision measurement for small dimensions and thickness.
Range: 0–25 mm
Accuracy: 0.001 mm
Brand: Mitutoyo
Ultrasonic Flaw Detector
Detect internal defects in welds and base materials.
Frequency: 0.5–15 MHz
Test Mode: UT, Thickness
Brand: Olympus
Magnetic Particle Tester
Detect surface and near-surface defects in ferromagnetic materials.
Method: Wet / Dry
Particle: Fluorescent / Red
Brand: Magnaflux
Coating Thickness Gauge
Measure zinc coating thickness on galvanized surfaces.
Range: 0–2000 μm
Accuracy: ±(1%+1 μm)
Brand: DeFelsko
Tensile Testing Machine
Test the tensile strength and mechanical properties of materials.
Capacity: 600 kN
Test Type: Tension / Compression
Brand: WANCE
Hardness Tester
Test the hardness of metal materials (Rockwell / Brinell / Vickers).
Test Method: HRB, HRC, HV
Load Range: 10–150 kgf
Brand: Mitutoyo
Level & Theodolite
Ensure accuracy of angle, level and installation.
Accuracy: 2″
Magnification: 30×
Brand: Leica
Inspection Laboratory
Our inspection laboratory is equipped with advanced testing instruments and maintained in strict accordance with international standards to ensure accurate and reliable test results.
Standardized environment
Complete testing capabilities
Professional inspection team
Strict quality control system
Our Inspection Capabilities
Dimensional Inspection
Ensure all dimensions meet drawings and standards.
Material Inspection
Chemical composition and mechanical properties test.
Welding Inspection
UT, MT, PT and visual inspection for weld quality.
Coating Inspection
Check galvanizing thickness and surface quality.
Assembly Inspection
Trial assembly inspection to ensure fit-up and accuracy.
Calibration & Traceability
All inspection equipment is regularly calibrated by certified organizations to ensure accuracy and traceability.
CNAS CALIBRATIONCNAS L1234
ILAC-MRA
ISO/IEC 17025We Comply with International Standards
ISO 9001Quality Management
ISO 3834Welding Quality
EN 1090Steel Structure
ASTMMaterial Standards
AWSWelding Standards
GB/TNational Standards
Our Commitment
With advanced equipment and professional team, ZZ Steel is committed to providing high quality products and reliable services to our customers worldwide.
Precision Inspection. Quality Assurance.
ZZ Steel ensures every product meets the highest standards.