http://pastport.jp/user/rhaudiopa ja-JP "Guangzhou Xinghongde Electronics Technology Co.,Ltd (Brand: RH-AUDIO) develops, manufactures, and markets highly reliable sound products of Commercial Sound System. 2020-07-10T15:28:08+0900 http://pastport.jp/user/rhaudiopa/timeline/rhaudiopa rhaudiopa http://pastport.jp/user/rhaudiopa/timeline/rhaudiopa