We supply hot rolled seamless steel pipes to GOST 8732-78 and GOST 8731-74 standards. 20# steel is the common equivalent grade. Send your sizes for factory price.

API 5L line pipe with steel grades X42, X52, X60, X70. Available in seamless & welded types. For high‑pressure oil and gas long‑distance transmission. Strict inspection standard, export‑oriented packing, custom sizes supported.

ERW welded MS mild steel black pipe, carbon steel material. Black oxide surface. Widely used for construction, scaffolding, water and fluid pipeline. Various OD and wall thickness, custom cut‑to‑length, export bundled packing.

Welded carbon steel square & rectangular hollow tubes. Material Q235B, Q355B. Available in black or hot‑dip galvanized surface. Widely used for building structure, fence, support frame. Multiple sizes, custom lengths, export bundling packing.

ERW black welded steel pipe, also known as black iron steel pipe. Made of carbon steel, widely used for construction, scaffolding, water and fluid transportation. Various sizes are available. We support custom length and export packing.

ERW welded carbon steel pipes. Material Q235B / Q355B. For building, scaffolding and fluid conveying. Multiple OD & wall thickness, custom‑cut length available, export bundling packing.