Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors?keyword=Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors?keyword=Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors?keyword=Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors专利查询检索|Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors?keyword=Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors?keyword=Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors?keyword=Tool for drilling holes of predetermined depth in profiled steel bars - has hydraulic system with control for forward and return motion of tool using rotating disc with holes and sensors专利申请-路标网

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