- 0086-137 3873 1708
- info@walmitube.com
What We Do
Walmi is a manufacturer of stainless steel seamless pipe as per ASTM A312, including an extensive material of Austenitic stainless steel, Duplex stainless steel, Super duplex stainless steel and High-alloy austenitic stainless steel.
Sizes range from 12mm to 813mm ( NPS 1/4”, DN8 to NPS 32”DN800) outside diameter with a full pipes schedules ranging from sch5S through double extra heavy.
The pipes are delivered in 5.0m-7.0m random lengths or cut to fixed lengths. But Walmi Stainless Steel can supply stainless seamless pipes in most grades exceeding 13m long. All pipes can be cut to customer’s exact requirements.
Application
Oil&Gas,Petrochemical,Power Generation,Pharmaceutics,Shipbuilding,Chemical,LNG…
Who We Are
Customized production as per PO, producing the very tubes and fittings that meet customers' requirements is our core business. We have 4 factories in China, which are specialized in stainless steel seamless pipes,tubes,fittings and flanges.
Wide in-stock inventory of stainless steel 304 and 316L seamless pipes & tubes in accordance with ASME/ASTM SA/A312. SA/A269 with dimensions and weights in accordance with ASME B36.19. ASME B36.10. Any quantity, Any where, we can delivery !
Variety of value-added services of piping-related products are supplied, including U-bending, cutting, polishing, beveling, deburring, color coding, PE coating, pipes welded with flanges, fittings and valves...Any size, Cut and Ready fast!
Walmi is a full service international distributor of stainless Butt-welding fittings,forged flanges,tubesheet&baffle,valves and many other piping products. We truly are the one-stop stainless steel piping service center.
Walmi Stainless Steel Co.,Ltd and Ms.Mia Wong has been our supplier of top quality stainless steel seamless pipes, tubes and valves for oil & gas application since our project began in 2009. Their work is always professional and on time, it is rewarding to do business with.
Mr.Rommy Rasjid
Director
PT Ragil Putra Mandiri, Indonesia
Seven orders of stainless steel pipes, fittings and flanges in 2017, all of them are delivery fast and on time, no any delay! What’s more, the quality is always excellent, the service is always friendly! Ms.Mia Wong and Walmi Stainless Steel Co.,Ltd is my most trusted supplier in China second to none!
Joe Siervo
Business Development Executive
Marine, Offshore, Oil & Gas Division
KN BAKER, Qatar.
Blog
05
01-2026
Introduction: Walmi, a core force in Wenzhou’s pump and valve industry, has focused on stainless steel ball valves for 20 years. In the global valve market, valued at $93 billion, Wenzhou, known as the “Hometown of Pumps and Valves in China,” is home to over 30% of the nation’s high-quality manufacturers. Wenzhou WalmiStainless Steel Co., Ltd. has been deeply involved in the field of flanged and fully welded ball valves for over 20 years. With its comprehensive control over stainless steel materials throughout the entire process, multiple authoritative certifications, and adaptability to extreme working conditions, it has become a preferred supplier for industries such as petrochemicals, energy, and chemicals. Its products, characterized by three core advantages—corrosion resistance, high sealing performance, and long service life—have established a distinct reputation as a specialized manufacturer in the market. II. Core Product Matrix: Flanged + Fully Welded, the Ultimate Application of Stainless Steel Materials. As a specialized manufacturer of stainless steel ball valves, Wenzhou Walmi’s product system focuses on two core areas: both are based on 304/316L stainless steel, and can be upgraded to duplex steel, Hastelloy, and other special materials according to working conditions, adapting to stringent requirements such as high corrosion and high purity. 1. Flanged Stainless Steel Ball Valve: A Perfect Balance of Convenient Maintenance and Corrosion Resistance
Introduction: Walmi, a core force in Wenzhou’s pump and valve industry, has focused on stainless steel ball valves for 20 years. In the global valve market, valued at $93 billion, Wenzhou, known as the “Hometown of Pumps and Valves in China,” is home to over 30% of the nation’s high-quality manufacturers. Wenzhou WalmiStainless Steel Co., Ltd. has been deeply involved in the field of flanged and fully welded ball valves for over 20 years. With its comprehensive control over stainless steel materials throughout the entire process, multiple authoritative certifications, and adaptability to extreme working conditions, it has become a preferred supplier for industries such as petrochemicals, energy, and chemicals. Its products, characterized by three core advantages—corrosion resistance, high sealing performance, and long service life—have established a distinct reputation as a specialized manufacturer in the market. II. Core Product Matrix: Flanged + Fully Welded, the Ultimate Application of Stainless Steel Materials. As a specialized manufacturer of stainless steel ball valves, Wenzhou Walmi’s product system focuses on two core areas: both are based on 304/316L stainless steel, and can be upgraded to duplex steel, Hastelloy, and other special materials according to working conditions, adapting to stringent requirements such as high corrosion and high purity. 1. Flanged Stainless Steel Ball Valve: A Perfect Balance of Convenient Maintenance and Corrosion Resistance
Introduction: Walmi, a core force in Wenzhou’s pump and valve industry, has focused on stainless steel ball valves for 20 years. In the global valve market, valued at $93 billion, Wenzhou, known as the “Hometown of Pumps and Valves in China,” is home to over 30% of the nation’s high-quality manufacturers. Wenzhou WalmiStainless Steel Co., Ltd. has been deeply involved in the field of flanged and fully welded ball valves for over 20 years. With its comprehensive control over stainless steel materials throughout the entire process, multiple authoritative certifications, and adaptability to extreme working conditions, it has become a preferred supplier for industries such as petrochemicals, energy, and chemicals. Its products, characterized by three core advantages—corrosion resistance, high sealing performance, and long service life—have established a distinct reputation as a specialized manufacturer in the market. II. Core Product Matrix: Flanged + Fully Welded, the Ultimate Application of Stainless Steel Materials. As a specialized manufacturer of stainless steel ball valves, Wenzhou Walmi’s product system focuses on two core areas: both are based on 304/316L stainless steel, and can be upgraded to duplex steel, Hastelloy, and other special materials according to working conditions, adapting to stringent requirements such as high corrosion and high purity. 1. Flanged Stainless Steel Ball Valve: A Perfect Balance of Convenient Maintenance and Corrosion Resistance
04
01-2026
Introduction: Walmi, a core force in Wenzhou’s pump and valve industry, has focused on stainless steel ball valves for 20 years. In the global valve market, valued at $93 billion, Wenzhou, known as the “Hometown of Pumps and Valves in China,” is home to over 30% of the nation’s high-quality manufacturers. Wenzhou WalmiStainless Steel Co., Ltd. has been deeply involved in the field of flanged and fully welded ball valves for over 20 years. With its comprehensive control over stainless steel materials throughout the entire process, multiple authoritative certifications, and adaptability to extreme working conditions, it has become a preferred supplier for industries such as petrochemicals, energy, and chemicals. Its products, characterized by three core advantages—corrosion resistance, high sealing performance, and long service life—have established a distinct reputation as a specialized manufacturer in the market. II. Core Product Matrix: Flanged + Fully Welded, the Ultimate Application of Stainless Steel Materials. As a specialized manufacturer of stainless steel ball valves, Wenzhou Walmi’s product system focuses on two core areas: both are based on 304/316L stainless steel, and can be upgraded to duplex steel, Hastelloy, and other special materials according to working conditions, adapting to stringent requirements such as high corrosion and high purity. 1. Flanged Stainless Steel Ball Valve: A Perfect Balance of Convenient Maintenance and Corrosion Resistance
Introduction: Walmi, a core force in Wenzhou’s pump and valve industry, has focused on stainless steel ball valves for 20 years. In the global valve market, valued at $93 billion, Wenzhou, known as the “Hometown of Pumps and Valves in China,” is home to over 30% of the nation’s high-quality manufacturers. Wenzhou WalmiStainless Steel Co., Ltd. has been deeply involved in the field of flanged and fully welded ball valves for over 20 years. With its comprehensive control over stainless steel materials throughout the entire process, multiple authoritative certifications, and adaptability to extreme working conditions, it has become a preferred supplier for industries such as petrochemicals, energy, and chemicals. Its products, characterized by three core advantages—corrosion resistance, high sealing performance, and long service life—have established a distinct reputation as a specialized manufacturer in the market. II. Core Product Matrix: Flanged + Fully Welded, the Ultimate Application of Stainless Steel Materials. As a specialized manufacturer of stainless steel ball valves, Wenzhou Walmi’s product system focuses on two core areas: both are based on 304/316L stainless steel, and can be upgraded to duplex steel, Hastelloy, and other special materials according to working conditions, adapting to stringent requirements such as high corrosion and high purity. 1. Flanged Stainless Steel Ball Valve: A Perfect Balance of Convenient Maintenance and Corrosion Resistance
Introduction: Walmi, a core force in Wenzhou’s pump and valve industry, has focused on stainless steel ball valves for 20 years. In the global valve market, valued at $93 billion, Wenzhou, known as the “Hometown of Pumps and Valves in China,” is home to over 30% of the nation’s high-quality manufacturers. Wenzhou WalmiStainless Steel Co., Ltd. has been deeply involved in the field of flanged and fully welded ball valves for over 20 years. With its comprehensive control over stainless steel materials throughout the entire process, multiple authoritative certifications, and adaptability to extreme working conditions, it has become a preferred supplier for industries such as petrochemicals, energy, and chemicals. Its products, characterized by three core advantages—corrosion resistance, high sealing performance, and long service life—have established a distinct reputation as a specialized manufacturer in the market. II. Core Product Matrix: Flanged + Fully Welded, the Ultimate Application of Stainless Steel Materials. As a specialized manufacturer of stainless steel ball valves, Wenzhou Walmi’s product system focuses on two core areas: both are based on 304/316L stainless steel, and can be upgraded to duplex steel, Hastelloy, and other special materials according to working conditions, adapting to stringent requirements such as high corrosion and high purity. 1. Flanged Stainless Steel Ball Valve: A Perfect Balance of Convenient Maintenance and Corrosion Resistance
25
12-2025
Merry Christmas 2025
Wenzhou walmi stainless steel Co., Ltd
Focus on stainless steel products
Merry Christmas 2025
Wenzhou walmi stainless steel Co., Ltd
Focus on stainless steel products
Merry Christmas 2025
Wenzhou walmi stainless steel Co., Ltd
Focus on stainless steel products
