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HT20—40牌号铁水,经RSC孕育处理,能有效地强化基体,获得良好的铸态组织,抗拉强度可提高4～5kg/mm~2.
HT20-40 grade hot metal, RSC inoculation treatment, can effectively strengthen the matrix, get a good cast structure, the tensile strength can be increased 4 ~ 5kg / mm ~ 2.