7/8 BAS
REFERENCE MATERIAL; CARBON STEEL; PHYSICAL STATE: SOLID; FORMAT: DISC; COMPOSITION: CARBON 2,8PCT SILICONE 0.94PCT 0.94PCT MANGANES 0 , 29PCTFOSFORO 0.09PCT SULFUR 0.18PCT CHROME 0.07PCT; QUALITY CERTIFICATE: C / CERTIFICATE; DISCO; BAS 7/8 BAS