YLE COMPANY WAS ESTABLISHED ON 2000,IT IS THE SPECIALIZED FACTORY FOR MAKIN GRELAY,ALARM,DOOR LOCK,AND REMOTE CONTROL .SEVEN YEARS PASSED,COMPANY`S ASSET IS GET TO RMB 5.1 MILLON,SALE AMONT 6.5 MILLION,AND EXPORT AMOUNT 2 MILLION US DOLLAR.YLE WAS ESTABILSHED BY WANG LINHU AND QIAN HEWEI.EVERY PROVINCE IN CHINA HAS OUR CUSTOMERS AND IT HAVE THE CLINETNS ALL OVER THE WORLD,INCLUDING EUROPEAN,AMERICA AND EAST AISA.AND YLE LOGO IS THE FAMOUST IN RELAY FIELD.COMPANY PASSED SIX CERTIFICATE TILL NOW AND HAVE MANY AUTOMATIC TESTING MACHING AND EQUIPMENT.THOSE ALL SUPPORT FOR YLE RELAY QUALITY.