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2021-06-29Utility Model Patent Certificate 2020218501231 An improved double end face through-rail grinding machine
2021-06-29Utility model patent certificate 2020218501212 A kind of guide plate assembly for machine tools
Patents for machine tool transport components and double-feed vertical grinding machine granted in April 2021
Feb 26, 2021 Utility model patents granted for two types of grinding machines
Conversion of excavators to auger drilling machines
Components and Principles of Excavator Hydraulic Auger Drilling Rigs
How to protect and check to make excavator hydraulic crushing pliers more durable