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International Standard Category: Other mining equipment

MT/T 661-1997    General technical condition for electrical apparatus used underground mine
煤炭井下用电器设备通用技术条件 ;
Category No.:73.100.99 Valid Status:superseded
Issued Organization:Ministry of Coal Industry Issued Date:1997-11-10
Implemented Date:1998-4-1 Abolished Date:
Superseded Standard.:MT/T 661-2011 General technique condition for electric apparatus used underground mine
Superseded Date:2011-9-1
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