Yuyao Xianglong Communication Industrial Co., Ltd. was established in 2005, which specialized in the production of industrial telephone handset, metal hook switch, telephone keypad and related accessories. With 6 years research and development, Xianglong created anther sister company, Ningbo Joiwo Explosion-Proof Science and Technology Co., Ltd in 2011, which mainly focus on all kinds of weatherproof telephones, telephone systems, waterproof telephones and jail phones for different industrial applications to supply one-step service for our clients. With flexible production capacity and design team, Xianglong developed more metal keypads not only for industrial telephones but also suitable for outdoor access control system since 2015 to meet various demand from market.