1. the outer diameter is smaller. 2. high precision small batch 3. high precision cold drawn finished the surface. 4. pipe cross area is more complicated. 5. steel tube superior metal keys. 1, manufacture method According to different prod…

Straight seam steel pipe only one longitudinal seam welded steel tubes, under GB/9711.1 diameter greater than the 914.4 straight seam steel pipe can have two straight welds and welded angle of 180 degrees. Welding quality requirements in t…

Precision foundry industry started late in China, demand for machinery and raw materials processing and other related industries support, its overall size grows, enterprise's comprehensive strength has improved, international popularity co…

1, industrial-grade stainless steel welded pipe material is stainless steel cold-rolled steel sheet, coils, cold-drawn or cold-rolled annealed and pickled, stainless steel welded pipe products. Characteristics of industrial-grade stainless…