Titanium and titanium alloy tubes for heat exchangers and condensers（GB/T3625-2007） 3150t horizontal extrusion press ,1000t vertical piercing machine and series of tube rolling mills make it possible to produce various of extruded and rolled seamless tubes of rare metals . Seamless tubes and pipes . manufactured by cold rolling process from extruded pipe blanks and annealed in vacuum annealing furnace ,have good quality and varied outside diameter and wallthickness Standard and desiganation: Gr1 ,Gr2, Gr3 , Gr9 , Gr11, Gr12, Gr16 and Gr17 according to ASTM B337 ,ASME SB337 , ASMESB338 ,ASTM B338 ,ASTM B86I. Cold-rolled Tubes and pipes specification: Outside diameter 10-114mm Wall thickess 0.5-5.5mm Length OD 10-15mm 4.000mm max. OD Over 15mm 12.000mm max. Finish cold rolled and annealed in vacuum annealing furnace Extruded pipes specification: Outside diameter 25-210mm Wall-thickess 4-30mm Length: 1000-10000mm