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2臺NJZ1000逆止器完成

發布時間:2014-11-18 16:22:01

日前,為國內某大型煤礦制作的2臺NJZ1000大型逆止器完成組裝,廠內驗收合格,該逆止器單臺重量達4噸,逆止力矩達100噸米。