Galvanized Gi Roof Panel for Prefabricated Buildings Modular Houses and Steel Structures

Product Description

Company Profile

Product Description

Hot dipped galvanized corrugated roofing sheet

Hot dipped galvanized corrugated roofing sheet is made of galvanized steel sheet that is rolled and cold-formed into various wave and T shapes. Galvanized corrugated roofing sheet have the characteristics of light weight, high strength, convenient and quick construction, earthquake resistance, fire resistance, rain resistance and so on.

As a leading manufacturer of galvanized Steel Roofing sheet, WITOP steel adheres to high quality standards, which can guarantee that galvanized roofing sheet reach customer's requirements.

Galvanized corrugated steel roofing sheet has been approved by ISO9001 quality management system certification and ISO14001 environmental management system certification.

Hot dipped galvanized corrugated roofing sheet
Standard	JIS G3302, EN10147, ASTM A653M
Grade	Commerical:  SGCC, SGCH, DX51D
	Deep Drawn: DX52D, DX53D, DX54D, FS, DDS, SGCD, SGC
	Froming and Structrual Steel: S280GD, S320GD, S350GD, S400GD, S500GD, S550GD
Zinc Coating	Z30-400G/M2, G30, G60,G90, Z10, Z12,Z27
Spangle Model	Zero Spangle, Small Spangle, Regular Spangle, Big Spangle
Surface Treatment	Chromated, Oiled, No-oiled
Hardness	Softy, Semi Hard, Full Hard, G550
Thickness	0.11-4.00MM
Width	20-1800MM
Coil Weight	Coil Weight
Coil Inner Diameter	508MM or 610MM
Package	Standard Seaworthy Exporting Packing
Transport Type	Vessel Container, Vessel Bulk, Railway Container, Railway Wagon
Loading Port	Tianjin, Qingdao, Ningbo, Shanghai and other China's port
Delivery Time	15-25 Days after Receiving the Deposit
Terms of Trade	EXW, FOB, CFR, CIF
Terms of Payment	T/T and Irrevocable LC at Sight
Production Capacity	7000MT/Month
Application	Roofing, wall cladding, Structural steel, pre-painted panels Car body components, chassis parts Refrigerator back panels & air conditioner shells Steel cabinet, shelf manufacturing Ventilation ducts, chimney pipes, and flue systems Electrical enclosures, distribution boxes Ceiling panels, wall partitions Toolboxes lighting fixtures metal craftwork Greenhouse tubes, scaffold pipes, cable conduits Cable tray supports & grounding accessories C/Z structural purlins Industrial packaging straps, steel bundling strips  Electronic frames and appliance brackets

Product Structure & Process Flow Chart

Galvanized Steel Coil Structure

* Chromated, Oiled/non-Oiled, Anti-Finger Printing
*Zinc Coated/ Aluzinc Coated/Galvalume Coated/ Zincalume Coated Layer
*Steel Sheet (Base Metal)
 
More Spangle Type for Choose
1. Zero Spangle
2. Small Spangle
3. Regular Spangle
4. Big Spangle

Steel Roofing Sheet Process Flow Chart

1. Uncoiler
2. Feeding Table
3. Roll Froming System
4. Safety Fence
5. Post-Cutting
6. Finished Product Output Supporter

Product Application

Galvanized Steel Sheet in Coil of Application

Roofing, wall cladding, Structural steel, pre-painted panels
Car body components, chassis parts
Refrigerator back panels & air conditioner shells
Steel cabinet, shelf manufacturing
Ventilation ducts, chimney pipes, and flue systems
Electrical enclosures, distribution boxes
Ceiling panels, wall partitions
Toolboxes lighting fixtures metal craftwork
Greenhouse tubes, scaffold pipes, cable conduits
Cable tray supports & grounding accessories
C/Z structural purlins
Industrial packaging straps, steel bundling strips 
Electronic frames and appliance brackets

Packaging & Shipping

Packing Details

Standard export package: covered with a layer of inside anti-water craft paper, middle PVC plastic film and outside 0.45mm thick steel sheet, packed on the iron pallets, bound with iron belt strip.
WITOP steel can pack steel roofing sheet based on customer's requirement
 
Loading and Fastening Steel Roofing Sheet
WITOP steel have our own loading and fastening workers and team, which can fasten steel roofing sheet well in container and bulk based on ship line company. WITOP steel can guarantee goods well to every client.

Factory Live Shot

Exhibiton and Certificate

FAQ

FAQ: Buyer's Guide: Common Questions Answered by Witop Steel

Q1: Are you a manufacturer or trading company?
A: We are a professional manufacturer of galvanized steel coils, galvalume coils, and prepainted steel (PPGI/PPGL) with over 20 years of experience. Our factory is located in China and supports both OEM and direct export services.
 
Q2: What is your minimum order quantity (MOQ)?
A: Our standard MOQ is 25 tons (1 container), but we also support small trial orders for new customers.
 
Q3: What standards do your products follow?
A: We produce coils according to ASTM A653, JIS G3302, EN 10346, and other international standards. Certificates like ISO, SGS, BV, CO, and Form E are available upon request.
 
Q4: Can you provide sample coils or cut sheets?
A: Yes, we can provide free A4-sized samples or cut sheets for testing and evaluation. Shipping costs may apply depending on location.
 
Q5: How do you ensure quality control?
A: Each batch undergoes strict quality inspection, including:
Coating and thickness test
Tensile strength and elongation test
T-bend and impact test
Surface and spangle inspection
We also provide mill test certificates (MTC) for every order.
 
Q6: What's your lead time?
A: Normal delivery time is 20–25 days after receiving the deposit. Urgent orders can be prioritized.
 
Q7: Do you support third-party inspection?
A: Yes. We welcome inspections by SGS, BV, TUV, or any agency appointed by the buyer.
 
Q8: Which markets do you serve?
A: Our main markets include Southeast Asia, the Middle East, Africa, South America, and Eastern Europe. We've served over 1,000 global buyers.
 
Q9: Can I visit your factory in China?
A: Absolutely! We welcome you to visit our factory. We'll provide pickup service, arrange a factory tour, and show you the production & inspection process.
 
Q10: What are your payment terms?
A: We accept T/T, L/C, and in some cases, DP or OA for long-term partners.