... all test certifications 2,good quality & widely usage 3,multi model for choice Titanium tube--round tube:1.material:Gr1,Gr2,Gr3 ... leangth:up to 15m wall thickness:0.4-10mmCP grade 1 can be used in the deep drawing parts for its ... good elogation and excellent corrossion-resisitance.CP grade 2 is widely used in the commerciallu pure Titanium.CP grade ...