Description: Made of anodised aluninum. With holes arranged in 5 rows*10 holes, and alphanumeric engraved for cross reference, guide from 1 to 10 and A to E. Details:
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No.1, Bei Yi Xiang, Damucang Hutong, Xidan, Beijing P.R.C.100032
Copyright © 2009 China Educational Instrument & Equipment Corp. All rights reserved.
Damucang Hutong, Xidan, Beijing P.R.C.100032