Shanghai Quanhai Digital & Technology Co., Ltd. is the largest agents of advertisement equipment for the world-famous brand 'Wit-color'' which with well-equipped testing facilities and strong technical force in China. Now as the company continues to grow and development, we also have our brand 'Larr'



With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in advertisement and other industries.



Our products are widely recognized and trusted by users and can meet continuously changing...