廊坊光联线缆有限公司
The first branch of Tianjin Cable Factory (Langfang Guanglian Cable Co., Ltd.) produces mine communication cable, mine signal cable, mine control cable, railway signal cable, computer cable, control cable, optical cable, mine optical cable, etc. It is widely used in coal mine integrated automation control system, coal mine integrated monitoring system, safety production monitoring and scheduling management system, coal preparation plant scheduling system, underground communication system and modern underground PHS signal transmission.