the first expert seminar on the group standard of "general technical specification for sound reinforcement systems for classrooms" was a complete success-pg电子有官方网站吗试玩

home
about us
brands & products
education & healthy
r&d & technology
market & cooperation
service & support

company news corporate events

the first expert seminar on the group standard of "general technical specification for sound reinforcement systems for classrooms" was a complete success

author：经营管理中心

date：2021-11-12

previous：sino xile united school healthy sound environment research and construction project donated 400,000 yuan worth of bede teaching audio to the cangzhou municipal education bureau

next：send warmth in the cold winter and care for left-behind children