Where is the 4G version of the telephone used? In tunnels, highway construction, subway construction and other projects, communication equipment is an important part. It not only plays a role in daily communication, but also needs to ensure normal work in emergency situations. Many customers choose the 4G version of the weatherproof phone. Based on […]
Read MoreIn the spirit of Christmas, J&R Technology, extends warm wishes and heartfelt gratitude to its esteemed customers, both old and new. This festive season serves as a time of reflection, appreciation, and anticipation for a prosperous future. As the year draws to a close, J&R Technology takes this opportunity to express sincere appreciation for the […]
Read More1. 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 […]
Read MoreOil pipelines are vital facilities for the transportation and delivery of oil and its derivatives, and emergency communication telephones play a crucial role in the oil pipeline system. 1. Emergency communication capability: Various emergencies can occur during the operation of oil pipelines, such as leaks, explosions, and fires. In these situations, timely communication is crucial […]
Read MoreThe 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 […]
Read MoreJ&R Technology is the leading manufacturer and designer of telephone solutions for customers around the world. Our production includes telephone sets, and their peripherals and core components.
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