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PPGI and PPGL Steel Sheets: PPGI Steel Quality Inspection

Sep 26, 2025

PPGI Steel Quality Inspection

 

PPGI steel is a beautiful and long-lasting material, which is widely applied in buildings, household appliances, furniture, and other areas. GNEE Steel is a top manufacturer and supplier of metal coil and sheet products. We boast three state-of-the-art coil coating lines that can produce up to 320,000 tons annually. Additionally, we have a range of equipment for slitting, shearing, cutting, profiling, and more. Our PPGI steel products come in various colors, sizes, and finishes. Please feel free to contact us for more information.

 

  • PPGI Steel Specifications

 

Item PPGI Steel (pre-painted galvanized steel)
Substrate Galvanized steel
Grades DX51D+Z, DX52/53/54D+Z, S280GD+Z, S350GD+Z, S550GD+Z, SECC, etc.
Thickness 0.13 mm-1.5 mm (stock thickness: 0.35/0.4/0.45/0.5/0.6/0.8mm)
Width 600 mm-1,250 mm (stock width: 1000/12oomm)
Paint Types PE, SMP, HDP, PVDF
Paint Thickness Top: 10-35 μm Back: 5-14 μm
Colors As per RAL Color (custom patterns are available)
Annually Production 320,000 tons
Value-added Services Custom sample, slitting, cutting, stamping, bending, profiling, and other
Package Standard Export Package

 

GNEE Steel has a full quality inspection system. Starting with the raw materials, chemical composition, and mechanical properties of the base metal are thoroughly inspected and tested to ensure that they meet the exact requirements of the customers. Furthermore, GNEE Steel's quality control system also measures the specifications and color, as well as the mechanical properties of the coating, such as adhesion, impact strength, hardness, and gloss. In addition, third-party inspections from reputable organizations such as SGS and CTI, are also acceptable.

 

Packaging is also a critical part of the quality control process, and GNEE Steel ensures that all packaging materials meet the required standards to prevent damage during transportation and storage. You can find the quality test video on our Youtube Chanel.

Overall, the QC system covers every aspect of the manufacturing process, from raw materials to packaging. GNEE Steel's dedication to quality has made it a leader in the industry. Therefore, customers can be confident in the durability and reliability of our products. If you're interested in PPGI steel, please don't hesitate to contact us for a free quote.

PPGI Steel (pre-painted galvanized steel)