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HEAT DISSIPATION SUBSTRATE AND SEAL TYPE PTC THERMISTOR HEATER
High-stability lifting material conveying device for building machinery
Hoisting maintenance device for chemical mechanical equipment
Rapid transfer mechanical equipment for building blocks
High-stability lifting device for construction machinery
Anti-collision device with good warning effect for construction machinery
Dual-purpose flying wing device, flying wing aircraft and flying wing method of flying wing aircraft
Stepped communication method and device for direct communication between trains and storage medium
NONLINEAR AUXILIARY SPRING, BELTED CAPSULE AND AIR SPRING