Authentic Steel is the export department of Winroad Group and a professional manufacturer and exporter of galvanized steel (GI) cut-to-length flat sheets. From our production hub in Tianjin, China, we supply GI flat sheets to HVAC manufacturers, appliance builders, construction contractors, and steel stockists in 78+ countries. We provide mill-direct pricing, custom processing, and rapid export dispatch through Tianjin Port. Our GI flat sheets can be supplied to international specifications on request.
According to our company brochure, the standard galvanized steel sheet range is:
Thickness: 0.1–3.5 mm
Width: 870–1250 mm
Length: 1000–12000 mm or as needed
Zinc coating: 30–600 g/m²
Materials: Galvanized / Galvalume / Zn-Al-Mg
Spangle: Big / Regular / Small / Zero Spangle
Specific steel grades, surface treatments, and cut-to-length sheet sizes are available on request. Please share your target application and processing method so we can recommend a suitable specification.
Thickness: 0.1–3.5 mm
Width: 870–1250 mm
Length: 1000–12000 mm or as needed
Zinc coating: 30–600 g/m²
Spangle: Big / Regular / Small / Zero Spangle
Materials: Galvanized / Galvalume / Zn-Al-Mg
Surface treatment: chromated, oiled, anti-fingerprint, skin-passed, or dry available on request
Steel grades: available on request
Standards: EN, ASTM, JIS, GB available on request
Edge: mill edge or cut edge available on request
Cut-to-length processing: available on request
We support flexible order planning for HVAC fabricators, appliance makers, construction contractors, and distributors. Specifications can be adjusted according to end use, processing method, and destination market requirements.
GI cut-to-length flat sheets offer good corrosion protection, surface quality, and formability. They are suitable for punching, shearing, bending, and general fabrication. The zinc coating provides barrier and sacrificial protection for outdoor and humid environments. Specific performance data is available on request.
HVAC and environmental control: air conditioning ductwork, ventilation cowls, plenum boxes, and fan housings
Electrical enclosures and appliances: refrigerator back panels, washing machine cabinets, switchgear boxes, and cable trays
Building construction and roofing: architectural flashing, gutters, downspouts, and metal roofing accessories
Agriculture and transportation: grain silo panels, livestock feeding troughs, trailer side panels, and stamping brackets
General sheet metal fabrication and post-painting
Every batch undergoes inspection, including zinc coating thickness measurement, bend tests, tensile and yield strength verification, and surface checks. Salt spray corrosion testing is available on request. A Mill Test Certificate (MTC) can be supplied on request, and third-party inspection is available on request.
To reduce white rust, moisture damage, and edge deformation during ocean transport, our GI flat sheets use multi-layer export packaging: rust-inhibiting VCI paper, plastic moisture barriers, metallic corner protectors, and high-tensile steel banding on heat-treated wooden pallets or steel skids. This packaging is suitable for long-distance container shipment and safe unloading.
Mill-direct supply and competitive pricing
Stable quality control from raw material to final packing
Export experience to 78+ countries
Custom cut-to-length processing on request
Fast dispatch from Tianjin Port
Technical support, datasheets, and MTC samples available
Contact our engineering sales team for factory-direct quotations, technical datasheets, MTC samples, or custom project quotes. Please share your required thickness, width, length, zinc coating, spangle, surface treatment, and destination port.
AUTHENTIC STEEL
Email: alice@authsteel.com
Mobile / Tel / WhatsApp: +86 137 8227 9845
