din 912 titanium screws 1,material:Gr1-Gr23 2,certification:ISO9001:2008 din 912 titanium screwSpecific information :1,Standard : ASTM , AMS , DIN2,Material : Gr 1 , Gr 2 , Gr 3 , Gr 4 , Gr 5 , Gr 7 , Gr 9 , Gr 12 ,TA 1 , TA 2 , TA3 ,TC 4 .3, Technical standard : Ti ≥ 99.5 % 4,Craft : Special unique processing technology .5,Application : Chemical industry , aerospace , spaceflight , surgical ...