... :1.0%(MAX),S:0.20%(MAX)2. F·C:93%, V.M:1.5%(MAX),A:5.5%(MAX),MOI ... qualification certificate and the right for carbon export. •Service we can supply the carbon additive with 90%,92%,93% and 95% with good quality ... Wuhan Iron & Steel,Maanshan Iron & Steel,Baotou Iron & Steel and Tangshan Iron & Steel etc.Exporting to many foreign countries in Europe,America,and Asia. carbon steel additive