educational equipment language learning system,etc...

Lugu high-Tech development zone

We are the national largest manufacturer of IP network internal communication intercom system!SPON Communication Technology Co., Ltd, has been a high-tech enterprise specialized in R&D for the...

Lugu high-Tech development zone

We are the national largest manufacturer of IP network internal communication intercom system! <br/> <br/>SPON Communication Technology Co., Ltd, has been a high-tech ent...

P.O.Box 720, Changsha

Longsea has been constantly providing tens and thousands units of language laboratory system, campus network system, media control system to domestic and foreign customers. According to the statistic ...