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Hazardous Areas Classification - North America
2019-07-23Electrical equipment installation in atmosphere with flammable gases or vapors, flammable liquids, combustible dusts, ignitable fibers or flyings represents a risk for fire and explosion.
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Joiwo put 200 pieces of explosion telephone on line
2019-07-20Joiwo started to put 200 pieces telephone JWBT821 on line for assembling yesterday July 19,2019.It took Joiwo 8 days to prepare all the spare parts ready.Assembling takes 1-2 days for delivery.
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The feature of mining production and Joiwo’s telephone
2019-07-19Due to the fact that coal mining work are processed under ground,there are dozens of problems remaining:1.Bad working environment(near working area,lack of illumination,humid,corrosive).
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What is video phone?
2019-07-16Video phone is a communication method achieve real-time transmission of caller's voice and picture(user's bust,picture and things) by telephone line.
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Joiwo explosion proof telephone in chemical plant
2019-07-12Joiwo installed its explosion proof telephones with loud-speaker in chemical plant of polypropylene and propylene.
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Joiwo exported 36 pieces Loud-speaker to USA
2019-07-11Last week Joiwo exported a pallet of telephone accessory to our customer in USA.It is 36 sets of loud-speakers fully packed to its destination by air.
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Joiwo hands-free telephone
2019-07-08Hands-free telephone means people can dial other number and talk through telephone without pick up a handset.A new designed functional telephone has two circuits…
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The Structure and Material of Explosion Proof Telephone
2019-07-06The impact-resistant housing of explosion proof telephone is cast from aluminum alloy,and it surface is sprayed with electrostatic prevention material…
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The weakness normal hand-free telephone
2019-07-04Normal home-use hand-free telephone will use microphone with low sensitivity,so user must speak nearly in front of microphone which restricts its apply distance.Otherwise…
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Joiwo use the advanced robotic arm for a large output
2019-07-02Joiwo meets a large demand for industrial telephone export.An advanced robot can help assemble screws to the mother board and keypad with programmable system to match …
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Identify the four links of industrial metal keyboard's quality
2019-06-26The industrial metal keyboard is a kind of industrial keyboard. Compared with other industrial keyboards, the industrial metal keyboard can be used in harsh environments…
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Optical transceiver
2019-06-20Optical transceivers, many people have never heard of it, that is, some people who have heard it do not know what it is. In fact, the optical transceiver is the terminal equipment for optical signal transmission…