... 3.low price 4.long working life Coal Mining Shaft Sinking Winch 1.high quality2.easy to operate3.low price4. long ... ,water pump ,water pipe, grouting pipe, wind-cone, etc. during sinking operation on vertical shaft of coal ,metal and nonmetallic mine ... on the basis of the regulation of overhanging equipment during sinking operation. USES: mainly used in coal mine, ore, non-metallic ...