Introducing the 4 Wire Phone Jack from Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd. We are a leading China-based manufacturer, supplier, and factory of explosion-proof telecommunication products. Our 4 Wire Phone Jack is designed to provide reliable and high-quality communication in challenging environments. Made from durable materials, this phone jack is explosion-proof and can withstand extreme temperatures, making it ideal for use in hazardous locations. With its four-wire design, it provides clear and stable communication for both indoor and outdoor applications. Our product is easy to install and provides a cost-effective solution for your communication needs. It can be used in various industries, including oil and gas, chemical, and petrochemical, to name a few. We are committed to delivering the best quality and service to our customers, and our 4 Wire Phone Jack is no exception. Choose Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd. for your telecommunication needs and experience the difference in quality and reliability.