Knowledge

Pre coated Metal - Pattern Coil

Color Coated Steel – Process Classification

Wanzhi Group offers color-coated steel produced through three processing techniques: roll-coated color-coated steel, spray-coated color-coated steel, and VCM laminated steel. These products serve diverse applications spanning construction, interior decoration, industrial manufacturing, and high-end home appliances, balancing durability, aesthetics, and cost-effectiveness. Roll Coating Process Pre-coated metal materials produced via roll coating, also known as PCM (Pre-Coated […]

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Polymer-Coated Steel

Knowledge of PPGI Coil

PPGI stands for Pre-painted Galvanized Iron, also known as Color-coated Galvanized Steel. PPGI coil is one of the most common forms of PPGI steel. Coils are widely favored across various processing sectors due to their ease of transportation and storage, as well as their flexible workability. PPGI Coil Specification Specification Details Thickness 0.12-1.5mm (Common: 0.12/0.14/0.16/0.18) Width

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Matte Color Coated Steel Usage

Knowledge of Matte Color-Coated Steel

Matte Color-Coated Steel is a flagship product of Wanzhi Group. We manufacture and sell matte PPGI steel, matte color-coated aluzinc steel, matte aluminum, matte stainless steel, and more. Matte-coated metal materials feature a soft luster without glare, and reflected images are not visible. They serve as a common solution in many architectural and appliance applications

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Q235 Galvanized Steel Spangle

Surface Treatment of Galvanized Steel: Phosphating vs. Passivation

The core objective of surface treatment for galvanized steel is to “play to its strengths while mitigating its weaknesses”—preserving its excellent rust prevention (red rust resistance) capabilities while overcoming drawbacks such as susceptibility to white rust and poor coating adhesion. Currently, Wanzhi Group’s primary surface treatments for galvanized steel include passivation, phosphating, coating, sealing, and

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Hot Rolled Steel Sheet

Steel and Steel Classification

Steel is a metallic material primarily composed of iron (Fe) with a carbon content below 2.11% (C<2.11%). Its carbon content typically ranges from 0.02% to 2.11%. Mechanical properties, machinability, and corrosion resistance can be enhanced by adding alloying elements such as manganese, silicon, chromium, and nickel. Steel can be classified based on chemical composition, smelting

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