... ,Gr5 Gr9,Gr23 We have superior material,advanced equipment,and Test Report Provided 1. Material:Titanium;Gr1,Gr2,Gr5,Gr7,Gr9 ... tube: Round ,square, rectangular , oval , and the plum blossom ,Straight Pipe, twisted , shaped steel frame tubes. 4. Application: Motor shell ,Compressor ... for the same at our costd. Test:Provide Bao Ti Center Physical and Chemical Test Report or Northwest Institute For Non - ...