drill rod and casing tubes for geological mining exploration
2021-7-20u2002·u2002Casing tubes length is generally supplied with length 3.0m, 1.5m & 0.75m. And casing thread is 4 threads per inch. Drill rods are used for drilling deep holes by connecting one after another and reach for thousands meters below, which is widely used in geological drilling, mining, oil field industries. Sizes of drilling rods and casing tubes ...
Get Price