Spiral pipe mill
Spiral pipe mill production lineThis spiral pipe mill production line is roll forming pipe in spiral process with submerged-arc welding, the pipes produced application for API standard or SAW genera...
Spiral pipe mill production lineThis spiral pipe mill production line is roll forming pipe in spiral process with submerged-arc welding, the pipes produced application for API standard or SAW genera...
Stainless steel helical bellowsroll forming mill line The helical bellows are widely used in coal mine pipeline, Municipal engineering water pipeline and bridge culvert, etc., the features are lower...