Does the product have quality inspection before loading?

Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.

How to pack the products?

The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It caneffectively protect products from corrosion during ocean transportation.

Premium Hot Dipped Galvanized Steel Coils for Durable Roofing

Name: Premium Hot Dipped Galvanized Steel Coils for Durable Roofing
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 1933940722

Shandong, ChinaShandong Tongmao Special Steel Co., Ltd.

US$550.00-980.00

1 Ton

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

After-sales Service

Online Technical Services

Warranty

1 Years

Model NO.

Zn25-275

Standard

ASTM, JIS, GB, AISI, DIN, BS

Certification

ISO, RoHS, IBR

Surface Treatment

Galvanized

Technique

Cold Rolled

Application

Container Plate

Edge

Slit edge

Stock

Length

in Coil, But Can Cut According to Customer Require

Thickness

0.8~18mm/0.8-800mm

Delivery Time

5~10 Work Days

Width

500-800mm

Transport Package

Seaworthy Export Package

Specification

Customizable

Trademark

SDTM

Origin

China

HS Code

7225409900

Production Capacity

10000000ton/Year

Key features

Excellent Corrosion Resistance: Zinc layer provides superior protection for pre-painted galvanized steel sheets.

High Heat Resistance: Reflective surface efficiently reflects sunlight, reducing heat transmission and saving energy.

Customizable Dimensions: Thickness 0.8-18mm, Width 500-800mm, and Length can be cut to customer requirements.

Multiple Certification Standards: Products certified by ISO, RoHS, IBR, SGS, and meet ASTM, JIS, GB, AISI, DIN, BS standards.

Fast Delivery Cycle: Complete delivery within 7-15 days after payment, with timely shipment guaranteed.

Versatile Application: Suitable for container plates, roofing, and various other industrial areas.

Secure Packaging: 3-layer packing with waterproof paper, plastic film, and steel strips to prevent corrosion.

Professional After-Sales Service: Online technical services and professional support team available for all customers.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceManagement Certification

Shandong Tongmao Special Steel Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤5.51h

AI-Powered supplier vetting

SummaryThe supplier is a limited-company trading company with eight employees and a product scope covering copper, aluminum, steel, brass, and stainless-steel products. It has self-operated import/export rights, eight years of export experience, and exports account for 71%–90% of total sales. Production information states annual capacity of 500,000 tons for steel pipe and 10,000 tons for copper pipe, with peak- and off-season lead times both within 15 working days. However, the supplier reports no overseas showrooms, agents, branches, or offline trade-show participation, and has no written complaint-handling, corrective-action, or supplier-service assessment procedures. Quality controls include quality assurance, but finished products are randomly inspected and checked by packing staff, with one quality inspector and no raw-material traceability. Innovation and formal R&D capabilities are limited: no new products were launched in the previous year, and no 3D design, ODM, SDK, or popular-brand OEM services are...

After-Sales capabilityThe supplier has no overseas showroom, overseas agent or branch, or offline trade-show participation. It also has no written corrective-and-preventive-action procedures, complaint-handling procedures, or effective supplier-service assessment records, although it accepts multiple quotation and payment terms and reports lead times within 15 working days.

R&D capabilityThe supplier reports no new products in the previous year and does not provide 3D software design, ODM, SDK, or popular-brand OEM services. Its stated R&D-related service is customization from samples, indicating limited innovation capability rather than a documented product-development program.

Production capacityThe supplier provides stated annual productivity of 500,000 tons for steel pipe and 10,000 tons for copper pipe, with peak- and off-season lead times both within 15 working days. It has export experience of eight years, self-operated import/export rights, and export sales of 71%–90%; however, quality inspection is limited to random inspection, packing-staff checks, one inspector, and no raw-material traceability.

Customization capabilityCustomization from samples is explicitly available in both the R&D/design-related and product-capability information. No broader 3D, ODM, SDK, or formal product-development capability is stated, so the confirmed capability is sample-based customization.