Shandong Duohe Import And Export Co., Ltd.

Stainless Steel | Aluminum Plate | Carbon Steel | Galvanized Steel

China Professional Steel Manufacturer & Exporter

Stainless Steel Sheet

Stainless steel sheet is a high quality metal material made from stainless steel alloys including 304 316 and 430. It has outstanding corrosion and rust resistance high strength good heat resistance and strong wear resistance. The···

Stainless Steel Pipe

Stainless Round Pipe

Stainless Steel Pipe

Our Stainless Steel Round Pipes and Tubes are precision-engineered to meet the demanding requirements of modern industries. Available in both seamless and welded construction, these products offer exceptional corrosion resistance,···

Aluminum Plate

Aluminum Sheet

Aluminum Plate

Aluminum plates are flat, lightweight and corrosion-resistant aluminum products, widely used in various fields for their excellent performance. Characterized by good ductility, thermal conductivity and formability, they are availa···

Electrolytic tinplate

Tinplate

Electrolytic tinplate

Tinplate, fundamentally a thin steel sheet coated with a layer of tin, is a versatile and sustainable material that has been the global standard for packaging for decades. Our electrolytic tinplate is manufactured through a proces···

Carbon Steel Angle Bar

Angle Steel

Carbon Steel Angle Bar

Carbon steel angle is a hot-rolled steel profile with an L-shaped cross-section, made from high-quality carbon steel. It features high strength, good rigidity, and stable performance, widely used in construction, machinery manufac···

Carbon Steel Sheet

Carbon steel plates are high-strength, cost-effective metal sheets made of iron-carbon alloys, widely favored by international buyers for their excellent weldability, toughness, and processability. They are essential for large-sca···

Galvanized Steel Coil

Galvanized Strip Coil

Galvanized Steel Coil

Galvanized steel coil is base carbon steel continuously coated with zinc (hot-dip or electroplated) and supplied in coiled form for downstream processing (slitting, cut-to-length, roll-forming). From a buyer’s perspective, galvani···

Pre-painted Galvanized Steel Coil (PPGI)

PPGI

Pre-painted Galvanized Steel Coil (PPGI)

Pre‑painted galvanized coil (PPGI on galvanized steel) combines the corrosion resistance of a zinc coating with a factory‑applied organic coating (coil coating) in one continuous product. From a buyer’s perspective, PPGI (or prepa···

Shandong Duohe Import And Export Co., Ltd.

About Us

SDDH of Shandong Duohe Import And Export Co., Ltd.

Shandong Duohe Import & Export Co., Ltd. is a professional steel supplier based in Shandong, China, with extensive experience in international steel trading. Since our founding, we have been committed to providing overseas customers with high-quality steel products and professional one-stop export solutions.

We specialize in angle steel, H beam, stainless steel, galvanized steel, and color coated steel (PPGI/PPGL). Our products feature complete specifications, stable quality, and competitive factory-direct prices, making them widely applied in construction, infrastructure, infrastructure development, machinery manufacturing, and various engineering projects.

Our products are exported to markets including Southeast Asia, the Middle East, Africa, Latin America, and South America. We have built long-term and reliable partnerships with local importers, distributors, and engineering contractors worldwide.

20+ Years Export Experience

Complete Certifications (ISO, SGS)

Custom Sizes & Materials

7 Days Fast Delivery

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Superior Quality

Premium materials & strict inspection ensure stable, durable steel products that meet global standards.
On‑Time Delivery

Efficient production & reliable logistics guarantee punctual delivery for your urgent orders.
Professional Export

Professional team with experience in documentation, customs clearance and shipment.
Long‑Term Partnership

Mutual trust, stable supply and consistent service for win‑win long‑term cooperation.

Stainless Steel Food Carts, Greenhouses, Roofs & Warehouses – Durable & Custom

Metal Solutions: Food Carts, Greenhouses, Roofs & Warehouses

Versatile Profile-Built Warehouse for Industrial and Commercial Storage

This warehouse is constructed with high-quality profiles, which are recognized for their excellent load-bearing capacity, corrosion resistance and structural stability.

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Multipurpose Stainless Steel Food Cart for Catering Scenarios

This food cart, crafted entirely from high-grade stainless steel plates, is designed to meet the diverse needs of modern catering services.

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Multipurpose Galvanized Pipe Greenhouse Shed for Plant Cultivation

This greenhouse shed is constructed with high-quality galvanized pipes, which feature excellent corrosion resistance, rust prevention, and strong load-bearing capacity.

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Versatile Galvanized Corrugated Sheet Roof for Residential and Commercial Buildings

This house roof is constructed with high-quality galvanized corrugated sheets, a popular choice for building roofing due to its outstanding performance and practicality.

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Strategic Global Partners

Collaborating with industry leaders to deliver compliant, high-quality steel solutions worldwide

partners

As an international purchaser looking for dependable steel suppliers, we value partners who guarantee consistent quality, reliable documentation, and smooth logistics. Our strong domestic partnerships mean access to a wide range of grades — hot-rolled, cold-rolled, galvanized, and plated steel — with competitive pricing and stable supply for large projects.