Zhongji Metal
Diverse Product Range · Reliable Quality · Tailored Solutions
Covering various types of steel products such as steel pipes, steel plates, steel coils, steel bars, and structural steel
meeting the diverse needs of different industries.
Product Description
Technical & Material Properties
Base Steel: DX51D, SGCC.
Coating Weight: Z100–Z275 g/m².
Thickness: 0.20–1.20 mm;
Width before corrugation: 914–1250 mm;
Effective width after corrugation: 762–1100 mm.
Profile Height: 18–76 mm;
Pitch: 76–100 mm.
Corrosion Resistance: Neutral salt spray resistance up to 720 hours for Z275 coating.
Surface Finish: Regular or minimized spangle; chromated or passivated surface.
Applications & Advantages
Applications:
Roofing for warehouses, factories, barns, and garages
Wall cladding for industrial and agricultural buildings
Temporary fencing and hoarding panels
Advantages:
Lightweight yet strong for structural applications
Excellent drainage capability due to corrugation profile
Low maintenance and long lifespan
Cost-effective alternative to prepainted options
Example Case: Z275 galvanized corrugated sheets on a livestock barn roof maintained structural integrity for 18 years with minimal maintenance.
Manufacturing Process & Standards
Process:
Hot-dip galvanizing of steel coil
Roll forming into corrugated shape
Cutting to customer-specified lengths
Stacking and packing
Standards: ASTM A653, EN 10346, GB/T 2518.
Inspection: Coating thickness and weight measurement, bend test, profile dimension check.
Packaging: Bundled in stacks, strapped, and wrapped in moisture-resistant covers for shipping.
Product Real Shot

Packaging and Shipping

FAQ
Q1: What product information must I provide before making a purchase?
A: Please provide the material, size, surface treatment requirements, and the quantities you need.
A: Prices may vary due to fluctuations in raw material costs.
Q3: Is it possible to send samples?
A: Yes, we offer free samples with express shipping worldwide.
Q4: Do you offer a service for customized products?
A: Yes, we can supply according to your specific requirements.
Q5: Can I visit you in person?
A: Customers from all over the world are welcome to meet with us.
Q6: Can you assist me in importing steel products for the first time?
A: Yes, we can provide support through our experienced shipping agents.
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Reliable Quality – All products are made with premium raw materials, advanced equipment, and strict quality inspections before delivery.
Compliance Guarantee – Specifications strictly follow technical agreements, ensuring products are free from defects in design, materials, and workmanship.
After-sales Service – Dedicated teams provide timely response, technical consultation, and long-term support.
Global Commitment – We serve clients in over 50 countries with consistent quality and reliable service.

First class quality service and professional after-sales team.
*We respect your confidentiality and all information are protected.