Comprehensive Structure Steel Fabrication and Installations
Comprehensive Structure Steel Fabrication and Installations

Since its establishment in 2008, Qingdao Yinglong Machinery Co., Ltd. has specialized in the custom manufacturing of non-standard building structural components.

The company has a comprehensive annual production capacity of 20,000 tons of carbon steel structures, 5,000 tons of stainless steel, and 3,000 tons of aluminum alloy. It strictly implements international standards such as AWS, EN, AS/NZS, and CSA to ensure stable delivery and long‑term service performance.

Structural Steel for Piping & Ducting

Piping Spools & Flue Duct

Piping Spools & Flue Duct
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Our expertise encompasses the fabrication of structural piping, process piping, and flue gas duct systems for industries such as energy, chemicals, and metallurgy. These steel pipes are manufactured based on the engineering documentation and operational requirements of specific projects, used to transport fluids, gases, and materials in high-pressure or heavy-duty industrial environments.

Large piping networks are prefabricated in the factory as segmented modules or spool sections. The dimensional accuracy and weld quality are managed effectively by completing precision cutting, fitting, and welding under controlled production conditions. It reduces on-site installation work and construction time significantly. Installation costs are low with execution reliability and increased safety by enabling off-site fabrication.

Samples

Pipe Elbow
Pipe Elbow
Stainless Steel Pipe
Stainless Steel Pipe
C-Hook Beam
C-Hook Beam
Galvanized Pipe
Galvanized Pipe
Dust Collection Duct
Dust Collection Duct
Dust Extraction Duct
Dust Extraction Duct
Flue Gas Duct
Flue Gas Duct
Secondary Air Duct
Secondary Air Duct
Aeration Piping Spool
Aeration Piping Spool
Primary Air Duct
Primary Air Duct
Dust Collection Pipeline
Dust Collection Pipeline
Piping Skid Module
Piping Skid Module

We offer fabrication solutions for a wide range of piping and duct components on specific project layouts and system requirements. From piping spools and stainless-steel pipes to dust collection ducts and modular piping skids, each steel pipe structure is manufactured in segmented form for efficient transport, installation, and on-site integration.