International trade co., LTD. Held the 2020 year-end summary and annual meeting
2020-05-22 00:00
Palace important task number one mission is space rendezvous and docking, it is universally acknowledged space technology bottleneck, and it faces the big current can meet such requirements, only China building materials science research institute to provide stabilized quartz glass, it is accepted that space technology bottleneck, and it faces at present can meet such requirements