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Rock Drill R/T38

钎头-球型截齿
BUTTON BIT - Spherical buttons
直径(mm)
Diameter
646464646464646470707076767676


截齿数量
No. of buttons
12121291010101012111013121211


冲水孔
Flushing hole
side


11



2



2


centre222123332132221


直径(mm)
Diameter
7676767676768989898989102102102127


截齿数量
No. of buttons
131310131313121211131312141319


冲水孔
Flushing hole
side1111



1


1
1


centre243444223442443


钎头-子弹型截齿
BUTTON BIT - Ballistic buttons
直径(mm)
Diameter
64646464646464707676767676768989102127
截齿数量
No. of buttons
121210101010131013121013131314141319
冲水孔
Flushing hole
side







1
11

11
1
centre223333432234442443
十字型钎头
Cross-type bit
直径(mm)
Diameter
64
















冲水孔
Flushing hole
side4
















centre1

















Rock Drill R/T38
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