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Associated company in Japan
Associated company in oversea
Affiliated company in oversea
Sales affiliation
Continental Disc Corporation
http://www.contdisc.com/
Groth Corporation
http://www.grothcorp.com/
SOR INC.
http://www.sorinc.com/
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Continental Disc Corporation
Groth Corporation
SOR INC.
Continental Disc CorporationGroth CorporationSOR INC.