... speed. In view of this situation, our factory has developed a high-quality recarburizer, an dit has the good characteristics of ... ≤0.4<0.5≤0.5DL2≥95≤0.03≤0.4<0.5≤0.5DL3≥92≤0.03≤0.4<0.5 ... ≤0.5DL4≥90≤0.03≤0.4<0.5 ... ≥98≤0.5≤0.4<0.5≤0.5ZL2≥95≤0.5≤0.4<0.5≤0.5 carbon raiser(90,91,92,93,94,95,96MIN)