we are excellent supplier & manufacturer 1>Grade:Gr5, Gr7, Gr9, Gr11 ,Gr23 2>Standard:ASTM B348 we are excellent supplier & manufacturer.We can produce Gr1~Gr4,Gr5,Gr7,Gr12,Gr231>Grade:Gr1~Gr4,Gr5,Gr7,Gr12,Gr23 ; Exactly follow your order2>Standard:ASTM B348,ASTM B265,ASTM B381,ASTM B4923>Specification:Ø400mm≥2000mm.4>Start from raw material,stable performance5>Useage:Medical,Industry6>Package ...