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通过实验室和生产厂验证，左权生铁化学成分稳定，满足ＧＢ１４１２－８５要求。在通常生产条件下，它是生产各种牌号球铁件的理想材料。
Through laboratory and production plant validation, Zuoquan iron chemical composition of stability, to meet GB1412-85 requirements. Under normal production conditions, it is ideal for producing various grades of ductile iron.