The spiral welded pipe production line is most competitive ability, most technical characteristic mill. The range from Φ60mm to Φ3000mm, including international type mill, API standard type mill and special type mill. Many domestic originations and domestic first had fully demonstrated formidable technical superiority and the most advanced technique research and development ability.

The domestic first unit of Φ219-529mm spiral welded pipe production line (Lincoln welder).
The domestic first unit (the world second unit) of Φ200-Φ914mm aluminum magnesium alloy spiral welded pipe production line (small hole welding).
The domestic first unit of Φ60-Φ114mm galvanization spiral welded pipe production line.

The domestic first export project Φ508-Φ1800mm spiral welded pipe production line (API standard).
The domestic first batch manufacture nine sets of spiral welded pipe production line (Complete within four month).
The maximum Φ3000mm hydrostatic tester in Asia.