The company is specialized in manufacturing DHT bit, DHT hammer, air-leg rock drill, product quality has reached advanced level in the industry.
 
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ZRTG series Concentric casing system

ZRTG Series Concentric Casing System Technical Specifications
P/N Out Dia. Of casing tube Inner Dia. of casing tube Reamed Dia. Min. inner Dia. of casing shoe Max out Dia. of DTH bit DTH Hammer
ZRTG105 146 126 152 115 105 ZRC4 series
ZRTG125 168 148 174 136 125 ZRC5 series
ZRTG135 178 158 184 146 135 ZRC5 series
ZRTG140 183 163 189 152 140 ZRC5 series
ZRTG165 219 199 225 184 165 ZRC6 series
ZRTG220 273 251 280 240 220 ZRC8 series
ZRTG series Concentric Casing System Features
Mainly used for geothermal and water well market, high efficiency, good steablity, good strightness,
very time saving.

 

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Add:No.3701, Zhuangjian Road, Kuiwen Economic Development District, Weifang City, Shandong Province, China