About Us

​​​​​​​ Who We Are

Global market

Available Product Standards

With an extensive global reach that spans over 90 countries, Longma Group has become a recognized name in the international steel pipe market. We pride ourselves on adhering to international product standards including:

>API 5L PSL1 & PSL2: Grade B, X42, X46, X52, X56, X60, X65, X70, X80

>ISO 3183: L245, L290, L320, L360, L390, L415, L450, L485, L555

>EN10219: S235/S275/S355 JRH/J0H/J2H

>ASTM A53/A53M: GR.B

>ASTM A500: GR.A, GR.B, GR.C

>ASTM A252: GR.1, GR.2, GR3

>ASTM A671: CC60, CC65, CC70

>ASTM A672: CC60, CC65, CC70

>ASTM A691: 1Cr, 1-1/4Cr, 2-1/4Cr

>AS/NZS 1163: C250/C250L0, C350/C350L0, C450/C450L0

>API 2B.

Our Certificates

>API 5L Certificate

>ISO9001 Quality Management Systems Certificate

>ISO 9001 2016 Certificate

>FPC(Factory Production Control Certificate)

>18001 Occupational Health and Safety Management Systems Certificate

>14001 Environment Management Systems Certificate

>Health Safety and Environment Management System Evaluation Certificate

Source of Raw Materials

At Longma Group, we source our raw materials from reputable domestic steel mills, including Shagang, Shangang, TISCO, BX Steel, Shougang, HBIS, and Bao Steel, ensuring high quality right from the start. Our facilities employ advanced heat treatment procedures to fortify welds and deploy sophisticated inspection equipment to detect any inconsistencies. In our pursuit of perfection, we trace our products from raw materials to finished goods, ensuring absolute traceability.

Our Services

Our customer-centric approach sets us apart. Catering to a wide range of clients, including engineering contractors, stockists, and import traders, we offer more than just steel pipe. We provide comprehensive solutions, offering fabrication services like welding, perforating, expanding, and other end treatments for mating connections. We also provide anti-corrosion services like hot-dip galvanizing, FBE, 2PP, 3LPE, and 3PE to ensure durability.

Complete Documents

Recognizing the importance of documentation for our clients, especially engineering companies, we provide comprehensive product documentation including Inspection and Test Plan (ITP), Manufacturing Procedure Specification (MPS), Material Test Certificate (MTC), and more.

Our Vision and Mission

Our vision is to become the top ERW/LSAW steel pipe manufacturer in the world. To reach our goals, we are building the world’s best team of steel pipe experts and produce high quality steel pipe for every clients.

At Longma Group, your priorities are our mission. We commit ourselves to timely deliveries, impeccable product quality, and unmatched customer service. We will meet our client’s expectations and achieve high standards in production, safety and quality.

​