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门座式起重机(简称门机)是港口重要的装卸设备。它功能强大,生产效率高,安全可靠性能好。门机生产效率的大幅提高,给企业创造了越来越多的利润,同时也对门机的养护维修提出了更高要求。维修模式和维修工艺向安全、高效、节能、环保方向转变,是门机维
Portal cranes (door machine) is an important port handling equipment. It is powerful, high production efficiency, safe and reliable performance. Door machine production efficiency increased substantially to the enterprise to create more and more profits, but also on the door maintenance and repair put forward higher requirements. Maintenance mode and repair process to the safe, efficient, energy saving, environmental protection direction is the door machine dimension