28/10/2025
🏭 China Factory | Carbon Steel Pipes
We are a China-based manufacturer supplying high-quality carbon steel pipes and tubes for industrial and structural use.
📏 Outer Diameter: 21.3–610mm | Wall Thickness: 1.5–30mm
📐 Length: 6m–12m (customized)
🧱 Material Grade: Q235, Q345, ASTM A53 / A106 / API 5L
⚙️ Type: Seamless / Welded | Surface: Black, Galvanized, Oiled
📦 Standard: GB / ASTM / EN / API
✅ Widely used in construction, machinery, fluid transport, and energy projects.
Factory-direct supply from China with reliable quality and global delivery.