Manufacturing capabilities

With advanced JCOE forming lines, high-precision welding equipment, and a yearly production capacity of around 300,000 tons, Longma is fully equipped to handle large-scale international projects with stable quality and reliable delivery schedules. From raw material inspection to hydrostatic testing, ultrasonic testing, and coating operations, every production stage is strictly controlled to meet demanding international standards such as API, ASTM, EN and other standards.

Our modern production facilities allow us to manufacture a wide range of LSAW steel pipes for oil & gas transmission, piling, water transportation, and structural applications. Backed by experienced technical teams and internationally recognized third-party laboratories, Longma not only delivers products, but also provides customers with confidence, consistency, and long-term project support.​​​​​​​

 

 

For buyers seeking dependable supply capacity, competitive lead times, and professional export service, Longma is a trusted manufacturing partner capable of supporting projects of any scale.​​​​​​​