Roseng is founded in 2012 and based in Shanghai.

Our products have been sold widely in the us and Europe used in the mining machinery, general engineering, construction hardware, hydraulic-pneumatic machinery, shipbuilding, automobile, railway industry as well as other precision machine components.

Familiar with standards of DIN, GB, ASTM & AISI, NF, BS, we provide casting products in materials of gray iron, ductile iron, stainless steel, carbon steel, alloy steel, al alloy, copper, bronze and materials specified by customers. Moreover, we also provide forging products, stamping products, , machining parts, adapter and fittings.

We are specialized in giving professional advice and in delivering parts in accordance with drawing, as a casting, forging or as an assembled execution.

Considering material property and production possibility, we can offer you an optimized solution.

With the better understandings on the local and European business culture, ROSENG ensures customers with competitive prices, specialized services and best quality as well as effective communication. We do not only position ourselves as one of your excellent suppliers but a strategic partner. We are convinced that our commitment will make you close to your goals.


• From development, design to delivery

• Total chain, process control

• Quality assurance / inspection

• One stop service concept

• Logistics, stock keeping

• Solid financial base

• Knowledge & educated organisation & personnel


The foremost aims of our activities are flexible adaptation according to the individual wishes and requirements of our customer.

We welcome the opportunity to work with you and we shall be pleased to help in any way we can.
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