Our company manufactures Wireline Drill Rods, BQ, NQ, HQ, PQ, PHD, Parallel Threaded Drill Rods, DCDMA Sizes AW, BW, NW, HW, and Metric sizes 42 mm, 50 mm, 60 mm to 90mm. Note: 1. Thread oil should be used when screwing the drill rod and hammer knocking should be prohibited. 2. The drill rod stand should have buffer materials, like wood, rubber, and more. The contact between the threaded ends and iron tools should be forbidden. 3. During the relocation of drill rod, the thread protector should be screwed on the threaded parts so as to protect it from damages.
