TCI cone bit used in oil drilling, water well, coal field exploration and development of engineering applicationsï¼? apply to soft hard staggered formation, such as soft shale, clay, gypsum, limestone, gypsum, sandstone, conglomerate, dolomite, sandstone, etc .
Tci cone bit used in oil drilling, water well, coal field exploration and development of engineering applicationsï¼? apply to soft hard staggered formation, such as soft shale, clay, gypsum, limestone, gypsum, sandstone, conglomerate, dolomite, sandstone, etc .
TCI cone bit used in oil drilling, water well, coal field exploration and development of engineering applicationsï¼? apply to soft hard staggered formation, such as soft shale, clay, gypsum, limestone, gypsum, sandstone, conglomerate, dolomite, sandstone
TCI cone bit used in oil drilling, water well, coal field exploration and development of engineering applicationsï¼? apply to soft hard staggered formation, such as soft shale, clay, gypsum, limestone, gypsum, sandstone, conglomerate, dolomite, sandstone
