ZB 93008-1990
Technical conditions for belt conveyors used in underground coal mines
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ZB 93008-1990
Standard No.
ZB 93008-1990
Release Date
1989
Published By
煤炭工业部
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ZB 93008-1990
ZB 93008-1990 history
1989
ZB 93008-1990
Technical conditions for belt conveyors used in underground coal mines
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