We must reduce such discrepancy,strengthen check of graphite form and chemical composition and casting foundry defeats,so as to promote casting complex property and using...

• 为了更好地适应市场需要,必须减少差异,强化石墨组织的验收并细化成分与铸件缺陷的验收,以提高铸件的综合性能和安全使用性能。