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Summary:The front room of the fire elevator is equipped with Class B fireproof doors or fireproof rolling shutters with stopping[Read the full text]
Summary:The effective support width of the upper and lower support beams should be greater than the width of the escalator truss[Read the full text]
Summary:During the use of elevators, some elevator users seek temporary workers or unqualified companies for elevator maintenanc[Read the full text]
