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中標某煤礦大型逆止器

發布時間:2013-04-17 16:23:26

2013-4-5,我公司中標某大型煤礦逆止器設備,其中NJZ530逆止器2臺、NJZ710逆止器2臺,該批逆止器屬超大型逆止器,扭矩為53噸米、71噸米,單臺重量達3.5噸。