... tubes ASTM B338 Accept the third-party Test, such as SGS before shipment. Test: Flattening Test/Tension Test /FlTitan/Ti tubes ASTM B338 3150 ... , Grade 9, Grade 11, Grade 12Standards: ASTM B 338, ASTM B 861, ASTM B862, ASTM B 337, ASME, DIN 17861Test: finished tubes are ... both the internal and external surfaces.Accept the Third-party Test, such as SGS before shipment.Flattening ...