titanium tube Shape: square Surface: Polished bright surface Standard: ASTM B337, ASTM B338 ASTM B861 1. Grade: Gr1, Gr2 , Gr3,Gr5(Ti-6Al-4V), Gr7,Gr9,Gr122. Standard: ASTM B337, ASTM B338 ASTM B8613. Production Description: 1) Size: Outer Diameter: 4-325mm Inside Diameter: 3-300mm 2)Shape: Round,Square 3)Length:<6000mm 4)Weight: According to the sizes. 5)Technique: Seamless 6)Surface: Polished ...