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person:("tian jiang")
Intelligent traffic intersection unmanned management and control equipment for traffic hub
Round heavy object shoveling and hoisting tool and using method thereof
Two-gear hydraulic driving bridge assembly for large grain combine harvester
Two-gear four-wheel hydraulic stepless variable speed drive axle assembly for large harvester
Multi-angle impact resistant interlayer filled light energy absorption box
Combined type automobile energy absorption box capable of absorbing energy in grading mode
Traction movable type expandable negative pressure isolation transfer cabin