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.

High-Quality Galvanized Metal Roofing Coil for Building Projects

Name: High-Quality Galvanized Metal Roofing Coil for Building Projects
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 2149869462

Shandong, ChinaShandong Tongmao Special Steel Co., Ltd.

US$450.00-600.00

10 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Width

1000mm, 1220mm, 1500mm

Steel Grade

Dx51d/Dx52D/SGCC/Hc340la/Hc380la

Thhickness

0.2mm-1.2mm

Hardness

Soft or Hard

Application

Transportation Tools, Door & Window, Glass Wall,

Technique

Cold Drawn

Grade

1000 Series

Temper

O - H112

Alloy

Transport Package

Standard Sea Worthy Packing

Specification

thickness: 0.3-4mm

Trademark

Tongmao

Origin

China

Production Capacity

500 Tons/Month

Key features

Superior Corrosion Resistance: Aluminum zinc alloy coating offers 2-6 times better resistance than hot-dip galvanized steel.

Wide Application Range: Suitable for roofing, wall panels, automotive bodies, appliances, and solar water heaters.

Customizable Dimensions: Available in widths from 600mm to 1500mm and thicknesses from 0.12mm to 2mm.

Flexible Coating Options: AZ coating ranges from 30 to 275 GSM with various surface treatments like oil or anti-fingerprint.

OEM and ODM Services: Customization available from designs, including logo printing and size customization per sheet.

Fast Delivery Cycle: Complete delivery within 7-15 days after payment confirmation.

Multiple Production Lines: Over 10 automatic production lines ensure timely delivery and high-quality output.

Comprehensive Certifications: Products certified with ISO 9001, SGS, EWC, CE, and RoHS standards.

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: ≤5.99h

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.