Intelligent bracelet integrating drunk driving prevention system
Navigation system and device capable of purifying in-car air
Self-extinguishing device capable of ensuring safety for building construction
Simple crane vehicle with protection reminding function
Lifter capable of carrying different types of articles
Crane capable of stably assembling and disassembling precision mold
Low-cost safety balanced height regulating gantry crane
Lifter device capable of controlling transportation direction and feeding distance
Self-balancing stair climbing equipment instead of walking
Multifunctional transformer strut disassembling pliers
Elevator voice control auxiliary key system for epidemic prevention and control
Lower protective plate for engine and vehicle with lower protective plate
Security warning control system and method of escalators
Sleeve tool with inner cavity depth capable of being automatically adjusted
Doorsill assembly for vehicle and vehicle with doorsill assembly