Gold Index: 1349
Zhengzhou LD Diamond Products CO. LTD [China (Mainland)]
Business Type:Manufacturer Country/Region: China (Mainland)
PDC anchor shank drill bit
MG
Applied to drill the bolt-mesh support for the coal mine, dam and roadway construction,etc.
2011-08-11
Coal Pick bits
Widely used for coal mining, trenching, sawing, auguring and tunnel boring in soft to hard rock and concrete.
Coal mining bit
high quality sintered carbide, the coal drill bit has large bearing turning torque, rapid drilling speed, and simple connection mode and being durable