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由国营四四一厂与石化北京设计院合作,承担设计与制造的BDY—9型电液自动控制执行机构在江苏顺利通过中石化总公司部级技术鉴定。专家们对该执行机构的技术性能表示满意,一致认为该执行机构填补了
BDY-9 electro-hydraulic automatic control actuator cooperated by State-owned 441 Plant and Beijing Petrochemical Beijing Design Institute undertook the design and manufacture, passed the ministry-level technical appraisal of SINOPEC in Jiangsu. The experts expressed their satisfaction with the technical performance of the implementing agency and agreed that the implementing agency had filled in