1. Determine the presence of environmental hazardous gases CLASSⅠ(Flammable Gases, Vapors or Liquids) Area Classification Division 1: Where ignitable concentrations of flammable gases, vapors or liquids can exist all of the time or some of the time under normal operating conditions. Division 2: Where ignitable concentrations of flammable gases, vapors or liquids are not likely […]

The Kozloduy Nuclear Power Plant Is A Nuclear Power Plant In Bulgaria Situated 180 Kilometres (110 Mi) North Of Sofia And 5 Kilometres (3.1 Mi) East Of Kozloduy, A Town On The Danube River, Near The Border With Romania. It Is The Country’s Only Nuclear Power Plant And The Largest In The Region. The Construction […]

The UK Has A World-Class Transportation Network, Both Between And Within UK Cities. With A Total Road Length Of Nearly 395,000 Kilometers, The UK Is Well Connected By Road Traffic. Freeways And A Roads Are Responsible For 65% Of Road Traffic.   Concept Formation In the 1960s, it was first applied on Australia’s highways, where telephone […]

What role does the underground gallery play in the city? A comprehensive pipeline gallery is a tunnel space built underground in the city, and various engineering pipelines such as power, communication, gas, heating, water supply, and drainage are integrated into one. It is a modern, scientific and intensive urban infrastructure, which can effectively solve the […]

What is an American Summer camp? Summer camp originated in the United States in 1861, the original purpose is to let modern city children away from big cities and return to nature, and outdoor life through a variety of activities and exercises, to become tough, brave, and correct behavior. As time goes by, the content […]

Recently, the 48th Geneva International Exhibition of Inventions closed in Geneva, Switzerland, and announced the list of winners. Founded in 1973, the Geneva International Exhibition of Inventions is an annual large-scale international exhibition organized by the Swiss Federal Government, the Canton of Geneva, the City of Geneva, and the World Intellectual Property Organization. It is […]

In the course of the whole social progress, prison as an important part of the judicial system is gradually modernizing. The phone is a very important device in prison, playing a very important role in family communication and social help and education, to promote prisoners’ stability and peace of mind reform. Based on the special […]

The typical application of clean room is manufacturing or scientific research, which requires low content of environmental pollutants, such as dust, air microorganisms, float and sink, chemical pollutants, etc. More precisely, clean rooms control contaminants down to the amount of impurities per cubic meter. For continuous monitoring and control of the environment, high precision measuring […]

JR101-FK Waterproof Telephone Telephone waterproof for tunnel purposes made of aluminum alloy material by die casting. The telephone waterproof is and rugged and durable. Special sealing design can ensure a complete waterproof grade up to IP66. Waterproof, dustproof, and moisture-resistant. The telephone is waterproof and widely used in tunnels and outdoors. Most metro and high-speed […]

JR204-FK prison telephone The inmate’s phone call using a metal casing has a destructive character. Prison call, with a high-definition LCD display, and 16 external metal buttons, use a magnetic hook, the phone hangs up automatically when the phone is hung up, use a metal phone line, to prevent tearing. Features: 1. With auto-dial function […]

JR-MT-08 Pipe Gallery Telephone Combination The industrial intercom is designed for heavy industry or noisy environments. It has a solid shell to protect the keys and the calling main board, which has good ip ratings waterproof, and can reach ip66. The intercom has a complete set of functional keys, which can dial any user at […]

JR101-FK-SIP Weatherproof Telephone The weatherproof telephone is an emergency phone that specifically addresses the harsh environment of the outdoor industry. weatherproof telephone for tunnel purposes made of aluminum alloy material by die casting. The telephone is rugged and durable. Special sealing design can ensure a complete waterproof grade up to IP66. weatherproof, dustproof, and moisture-resistant. The weatherproof telephone is widely used […]

Acoustic Phone Booth Hood For external or internal use, the JR-TH-01 is designed to attain a high level of noise reduction of up to 23 dB. Manufactured using general-purpose resin material fire regulation, the JR-TH-01 is extremely robust and weatherproof. Inside the hood’s shell is a perforated polypropylene lining that houses non-hygroscopic acoustic insulation. Fitted […]

JREX103 Explosion proof telephone ATEX phones are EU certification requirements for equipment used in potentially explosive environments. ATEX-certified explosion-proof phones can be used in hazardous areas with dust and flammable gases in mines and non-mines. The phone can be used normally in a hazardous area without causing a fire or explosion. Explosion proof telephones work […]

JR101-FK-L Weatherproof Telephone This Weather-resistant telephone is fully contained within a corrosion and vandal resistant cast aluminum weatherproof case with a pivoted door providing complete protection against dust and moisture ingress, resulting in a highly reliable product with a long MTBF. Applicable to Tunnels, Mining, Marine, Construction sites, Blast furnace areas, Underground, Metro stations, Railway platforms, Highway side, […]

10 YEARS ODM/OEM FACTORY J&R Technology Ltd. is a premier designer and manufacturer of standard and custom telephone solutions. Our products deliver industry proven and innovative high quality telephone technology to a broad range of private, and public businesses, industries, and applications. The industrial intercom system is J&R’s demand for production and dispatching of chemical […]

JR101-FK Weatherproof Telephone The weatherproof telephone adopts a metal weatherproof shell to minimize environmental damage to the phone. The sturdy shell can prevent damage to the phone. The airtightness is good, and the waterproof level reaches IP66. It can be used normally in outdoor weather. Asia’s most professional telephone manufacturer! The weatherproof telephone for the […]

JR208-FK Vandal Resistant Telephone Stainless Steel Telephones are made of 304 Stainless Steel. The appearance is square, all metal casting. Often used as a riot phone in public places Stainless steel telephones are made of 304 stainless steel and are wall mounted or built-in telephones. The pay phone is made of SUS304 stainless steel, making […]

We are a stainless steel telephone manufacturer, we have our own R&D team, the products are all independently developed, we can customize the telephone according to your needs, and can provide you with VoIP and analog versions of the telephone. This custom telephone has a sturdy case that resists damage and has a long lifespan. […]