CDM Titanium is an approved ISO9001:2015 & PED 14/68 EU by TUV and a professional manufacturer and exporter of titanium material and product. CDM titanium welded tubes are processed from titanium coil, and longitudinally welded by TIG process without metal filler, so it guarantees the homogeneity of the welded area. Grade: GR1, GR2, Size(mm): OD(8-102)Ã??WT(0.5-1.2)Ã??L, at random Length, coil tube, U-Tube. Standard: ASTM B338 , ASME SB338. EMAIL: sales at cdmtitan dot com Grade: GR1, GR2, GR7,GR12 etc. Size(mm): OD(114-1220)Ã??WT(2.1-12.7)Ã??L, manual welded from titanium plate. Standard: ASME SB862.