Dual Wall Drilling Rods - Chinaprice: contact company for price
and inner pipe with a sealing system to keep the drill string
pressurized. Air is blown between the walls of the inner and outer pipes
down to the hammer while the air forces the cuttings back up through the
center of the inner piper.
Acedrills offers full range of high quality RC Drilling Pipes.
- Posted By: Acedrills Rock Tools Co., Ltd
- Phone: 868515526688
- Address: 7-3, Xiangzhangnanguo Building, Youzha Street, Guiyang , China
- Website: http://www.acedrills.com
Published date: January 17, 2014 -
- Business Description: Specialized manufacturer of rock drilling tools for Mining, Tunneling,
Quarrying, Exporation, water well drilling.
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