http://pastport.jp/user/primusit ja-JP PRIMUS IT has been dedicated to developing, manufacturing and marketing for fiber optical communication fields. 2022-03-02T12:41:41+0900 http://pastport.jp/user/primusit/timeline/PRIMUS%20IT%20Limited primusit http://pastport.jp/user/primusit/timeline/PRIMUS%20IT%20Limited