Saved successfully
Save failed
Saved Successfully
Save Failed
公开(公告)号:WO2010135982A1
公开(公告)日:2010-12-02
申请号:PCT/CN2010/073197
申请日:2010-05-25
Applicant: 俞信国 , 乐其呈 , 俞正
Inventor: 俞信国 , 乐其呈 , 俞正
IPC: B02C13/00 , B02C13/28 , B02C13/284 , B02C13/26
CPC classification number: B02C13/06 , B02C13/04 , B02C13/284