led display supplier PRT Optoelectronic Co.,Ltd is led sign manufacturers and suppliers in China who can wholesale led sign. We can provide professional service and better price for you. If you interested in led sign products, please contact with us. Tips: Special needs, for example: OEM, ODM, customized according to demands, design and others, please email us and tell us detail needs. We follow the quality of rest assured that the price of conscience, dedicated service.