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大连重工·起重集团攻关设计的拥有自主知识产权的盾构机9种系列刀具,日前在厂内研制成功,全截面剪切强度试验参数达到国际一流刀具性能指标。长期以来,盾构机刀具因材质特殊、制造
Dalian Heavy Industries · Crane Group designed 9 kinds of shield machine with independent intellectual property rights and successfully developed in the factory. The full cross-section shear strength test parameters have reached world-class tool performance index. For a long time, shield machine tool because of special materials, manufacturing