Our company , hongyan in china , was estabished in 1990.so far it has developed into home and abroad approved ., sound quality , reasonable price and good service.warmly by customers, Our factory contain hi-tech equipement and technic, including advanced CNC, electricpulse, annual mold manufacture quatity is 100-120sets we has long experience in this line for 10yeas, have ability to produce as per your required.