Originally established in Shenzhen since 2009,SHENZHEN DDW TECHNOLOGY CO.,LTD(own brand"DDW" and domestic brand "ROHA") is one of leading manufacturer of lcd video wall system,video wall controller, Advertising Digital Signages, professional CCTV LCD monitors and more commercial LCD displays. Our Advantages -Price Open Factory based Costing Brand Quality with 10% Lower Price -Service Fast Smooth Communication Free Project Design Assessment -Experience Qualification Successful ...