... of tubes we offer: Round ,square, rectangular , oval , and the plum blossom ,Straight Pipe, twisted , shaped steel frame tubes. 5 ... →Titanium coil→Welding→Titanium welded tube 7.We also manufacture the products as follows:² titanium,nickel,zirconiumsheet/plate,bar/rod: ... sheet,bar,tube² Titanium,nickel,zirconium,chromium standard partsthe following pictures is only for reference,to prevail in kind.