... .Long service life 4.1 year quality warranty hoist electric safety device for lifting equipment 1.DescriptionWTL-A100 lifting equipment is ... capital”— Yichang. WTAU is committed to researching , developing and producing safety devices for crane cranes , automatic monitoring control systems , etc. WTAU ... REQUESTS,PLEASE FEEL FREE TO CONTACT US.^_^ hoist electric safety device for lifting equipment