speed signal WESTBANK 速率号志

subaqueous signal WESTBANK 水下信号

stop signal WESTBANK 停车号志

speed control signal WESTBANK 限速号志

tripod signal WESTBANK 三脚标架

visual signal WESTBANK 视觉号志

traffic signal WESTBANK 交通号志

shunting signal WESTBANK 调车号志

two phase signal WESTBANK 双时相号志