Manual reversing main operation valve for hydraulic support of thin seam

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Bibliographic Details
Main Authors SONG CHONG, ZHANG SHOUXIANG, GU DONGWANG, LU HEPING, LI CHUANMING, LIU GUOZHU, YANG SHUYI
Format Patent
LanguageChinese
English
Published 02.04.2014
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Bibliography:Application Number: CN2012109188