From WLA to WLP, Parallel Threaded Drill Rods, DCDMA sizes AW-HW, and Metric sizes 42mm to 90mm, tapered threaded drill rods,DCDMA sizes AWY to NWY, AWJ, BWJ and S75 drill rods. Specification: 1. Our drill rods are of the highest quality ,are manufactured to exacting ...
Dongying Lake Petroleum Technology Co., Ltd [Manufacturing & Processing Machinery] [Machine Tools] [2018-06-08 10:33:45 ]