Liaoning Heavylong Heavy Industries Co., Ltd
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Dalian Longsheng Metallurgical Equipment Manufacturing Co., Ltd.
🇨🇳 China
2014101-200 peopleManufacturer/Trading Company/WholesalerOEM manufacturer
Product customization
High-tech enterprise
Key customer
ANSTEEL
Key market
Europe
Description
Dalian Longsheng Metallurgical Equipment Manufacturing Co., Ltd. is a professional manufacturer and trading company established in 2014 and based in Dalian, China. Operating from a 20,000-square-meter facility with a workforce of over 100 skilled employees, the company specializes in the processing, manufacturing, and repair of metallurgical equipment and heavy machinery components. Its technical leadership and core production team originate from the Dalian Huarui Heavy Industry Group, bringing significant expertise to the enterprise.
The company is a leader in advanced surface treatment and welding technologies, including build-up welding, cladding welding, thermal spraying, and supersonic spraying (JP8000). Their comprehensive product portfolio features continuous caster rollers, forged rolls for hot and cold rolling mills, crystallizers, fan-shaped sections, and coiling roller tables. They also manufacture large-scale equipment such as stacker reclaimers and calcium carbide furnaces. Beyond metallurgy, the company serves the shipbuilding, ocean drilling, mining, and chemical industries, and has contributed to the development of military-grade products and advanced ceramic materials like silicon carbide and tungsten carbide.
Equipped with ISO 9001 certification, Dalian Longsheng maintains rigorous quality control through advanced testing equipment, including laser trackers, CMM, and X-ray flaw detectors. The company has established long-term partnerships with major international and domestic enterprises, including Sumitomo Group, Nippon Steel, POSCO, and SMS-DEMAG. They offer OEM and contract manufacturing services, providing high-quality, wear-resistant components designed for demanding industrial environments.
Continuous Caster Roller-Cladding Welding Wear Parts
New Technology of Repair of Forging Die by Built-up Welding Surfacing Welding
Study on Procedure and Properties of Co_2+ N_2 Arc Surfacing After Thermal Spraying of Alloy Powder
China Forged Roller Repair Wear Resistant High Hardness
Super-Harden Phace Tic, Nbc, Vc and B_4c Abrasive-Resistance Surfacing Welding Roller
Cladding Welding-Wear Parts-Forged Back up Rolls for Hot and Cold Rolling Mills
Repair Surfacing Welding for Large Gear
China Forged Roller for Steel Mills-Cladding Welding
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Shenyang Yuanlong Industry Co., Ltd.
🇨🇳 China
2010301-500 peopleManufacturer/Trading Company/DistributorProduct customization
OEM manufacturer
Shipments
47
Key customer
ETHYLENE
Key market
North America
Description
Shenyang Yuanlong Industry Co., Ltd. is a comprehensive B2B enterprise headquartered in Shenyang, China, specializing in the manufacturing and international trade of high-quality castings, machinings, and industrial components. Established with a manufacturing plant dating back to 1990, the company operates a 50,000 sqm facility in Liaoning province featuring six specialized workshops for sand casting, investment casting, die casting, heat treatment, machining, and pattern making. With a workforce of approximately 300 to 500 employees and a yearly production capacity of 9,400 tons, the company serves as a versatile OEM and contract manufacturer for global partners including Sulzer, Watts Valves, and Mitsubishi. Their extensive product portfolio covers critical spare parts for valves, pumps, diesel engines, agricultural machinery, and medical devices, as well as a dedicated line of fitness equipment such as dumbbells and kettlebells. Shenyang Yuanlong works with a wide range of materials, including stainless steel, carbon steel, ductile iron, bronze, and aluminum alloys. The company maintains rigorous quality standards, holding ISO 9001, ISO 14001, and IATF 16949 certifications, ensuring all products conform to international specifications such as ASTM, ANSI, DIN, and JIS. Leveraging over 20 years of export experience, they provide integrated solutions from product design and CNC machining to international logistics for clients across North America, Europe, and Asia.
Pump Body-Stainless Steel (CF3M)
Valve Shaft
L Type 3-Way Flanged Ball Valve
Wafer Butterfly Valve
Valve Plate-Stainless Steel (1.4469)
Die Casting-Al Alloy
Valve Body-01
Single Door Swing Check Valve
