http://pastport.jp/user/gonsin ja-JP Established in 2003, Gonsin Conference Equipment Co., LTD. is the industry leader in the R&D, manufacturing, and sales of digital conference equipment, management software, and Conference + products. It is a state-level high-tech enterprise in China and a 2022-06-02T18:21:53+0900 http://pastport.jp/user/gonsin/timeline/Gonsin%20Conference%20Equipment%20Co.%2CLTD. gonsin http://pastport.jp/user/gonsin/timeline/Gonsin%20Conference%20Equipment%20Co.%2CLTD.