... ,H63,H65,H68,H70,H85,H90;3.Non-lead Free Cutting Brass:performance equals with C3601,C3604,C3771;Pb&Ca contents< ... the best instead of leaded brass,no Pb or Ca,totally environmental protection,easy cutting,drilling,good machining performance,good ... plating;9. Manganese Brass:high intensity &hardness,good wear ...