Do you support third-party inspection?

Yes. We welcome inspections by SGS, BV, TUV, or any agency appointed by the buyer.

Which markets do you serve?

Our main markets include Southeast Asia, the Middle East, Africa, South America, and Eastern Europe. We've served over 1,000 global buyers.

Can I visit your factory in China?

Absolutely! We welcome you to visit our factory. We'll provide pickup service, arrange a factory tour, and show you the production & inspection process.

What are your payment terms?

We accept T/T, L/C, and in some cases, DP or OA for long-term partners.

Gl Steel Coil Manufacturer with Mill Test Certificate for International Construction Projects

Name: Gl Steel Coil Manufacturer with Mill Test Certificate for International Construction Projects
Brand: Qingdao Witop Steel Co., Ltd
SKU: 2185261462

Shandong, ChinaQingdao Witop Steel Co., Ltd

US$630.00

25-49 Tons

US$610.00

50-99 Tons

US$590.00

100+ Tons

Sample price:US$35.00/piece.Request sample

Product profile

Customization

Available

Type

Coil

Standard

ASTM, DIN, JIS, GB, BS

Composition

Steel

Technique

Cold Rolled

Shape

Roll

Surface Treatment

Coated

Special Use

Wear Resistant Steel

Application

Structural Steel

Production Standard

JIS G3321, En 10346, ASTM 792

Material

SGLCC, Sglch, Dx51d+Az,Dx52D+Az, Dx53D+Az, G280 G3

Aluzinc Coating

Az30-Az150

Spangle

Regular Spangle,Minimum Spangle, Zero Spangle, Big

Hardness

Soft Hard(Hrb60),Medium Hard(Hrb60-85),Full Hard(H

Surface Treatment Type

Chromated/Non-Chromated, Oiled/Non-Oiled, Skin PAS

Surface Color Treatment

Bare, Geen, Blue, Golden

Coil ID

508/610mm

Coil Od

1000mm or Customize

Coil Weight

3-5 Tons

Regular Order

25 Tons or One Container, for Less Quantity, to Co

Shipment

by Conatiner, by Bulk, by Railway

Anti-Fringer Printed

Depend on Required

Inkjet Printing

Yes

Customize Label for Shipment

Yes

Transport Package

Standard Seaworthy Exporting Packing

Specification

GL Coil

Trademark

Witop

Origin

Shandong, China

HS Code

72106100

Production Capacity

80000 Tons/Year

Key features

Wide Standard Compliance: Meets ASTM, JIS, EN, DIN, and GB international standards for global reliability.

Customizable Spangle Finish: Offers Big, Regular, Small, Zero, and Skin-pass spangle options for specific needs.

Flexible Coil Dimensions: Inner diameter customizable to 508mm or 610mm; width ranges from 20 to 1800mm.

Diverse Surface Treatments: Available with Chromated, Oiled, Anti-Finger Print, and various color treatments.

Comprehensive Quality Testing: Includes coating thickness, tensile strength, T-bend, and chemical composition analysis.

Robust Export Packaging: 3-layer seaworthy packing with desiccant and steel strapping to ensure safe delivery.

Fast Production Capacity: Monthly capacity of 7000MT with a standard lead time of 15-25 days after deposit.

Global Market Experience: Serving 1000+ clients in 30+ countries with ISO 9001 certified quality management.

Company profile

High Repeat Buyers ChoiceImporters and ExportersIn-stock CapacityFast Delivery

Qingdao Witop Steel Co., Ltd

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyNearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤3.34hTerms of Payment: LC, T/T, D/PInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CIP, CPT

About Our Factory & Business Background

Address1301-1302, Block B, Yunfeng Center, No. 7 Ganquan Road, Licang District, Qingdao, Shandong, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsPPGI, Gi Sheet, Hot DIP Galvanized Steel Coil, PPGI Sheet, Ibr Roof Sheeting, Galvanized Steel Sheet, Galvanized Sheet, Galvalume Steel Coil, Corrugated Roofing Sheet, Galvanised Steel Sheet

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:Are you a manufacturer or trading company?

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.

Q:What is your minimum order quantity (MOQ)?

Our standard MOQ is 25 tons (1 container), but we also support small trial orders for new customers.

Q:What standards do your products follow?

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.

Q:Can you provide sample coils or cut sheets?

Yes, we can provide free A4-sized samples or cut sheets for testing and evaluation. Shipping costs may apply depending on location.

Q:How do you ensure quality control?

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.