Disesuaikan Dukungan
OEM, ODM
Nama merek
Henan Drills-King
Product name
pcd coal mining drill bit
Type
wing bit for coal mining roof bolting support
Application
Coal mine, water canservancy & hydropower
Material
best diamond & sintered carbide
Processing
casting/forging
Size
26mm, 27mm, 28mm, 29mm, 30mm, 32mm, 42mm ,etc
Shank (thread)
M14X1.5, M16 x2 ,R17, R22
Diameter of flushing hole
4mm or 6mm
Qunatity of wings
two wings
Certifictaiton
ISO9001:2008