Effect of Tungsten Addition on the Nucleation of Borides in Wide Gap Brazed Joint
Right-angled door opening car underframe counterweight mounting structure
Metallurgy crown block operation early warning method and system based on artificial intelligence
Equipment hoisting device with balance adjusting mechanism for machine and equipment installation
Electric vehicle battery pack capable of automatically adjusting temperature difference
Upper cross beam and diversion sheave structure of elevator
Power receiving structure of rail power supply trolley
Pair of novel electronic safety tongs for elevator braking