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IP railway network underground pipe gallery waterproof moisture-proof telephone for tunnel

2022-01-04
Introduction of Ningbo Joiwo speed dial payphone public telephone -JWAT911

2021-12-30
Application of Joiwo Waterproof Telephone in Hydropower Station

2021-12-21
Introduction of Joiwo weatherproof handsfree emergency telephone-JWAT942

2021-12-20
Joiwo's outstanding products in the field of industrial explosion protection

2021-12-11
Joiwo outstanding performance of jail telephone in prison JWAT133/JWAT137

2021-11-17
Joiwo industrial handsfree telephone speakerphone intercom with full keypad was installed at elevator

2021-11-12
Joiwo industrial explosionproof telephone with horn loudspeaker was installed at a ordnance factory

2021-11-08
Introduction to the principle of VOIP system and application fields

2021-11-01
Ningbo Joiwo SOS emergency intercom can be used for the help point intercom system.

2021-10-26
Introduce of Ningbo Joiwo vandal proof embedded handsfree intercom telephone JWAT402

2021-10-20
Introduce of Ningbo Joiwo vandal proof wall prison telephone Inmate call Phone

2021-10-13

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