“drill rod”造句,怎麼用drill rod造句
The utility model relates to a medical orthopaedics left-hand drill bit for drilling a left-hand thread hole. A metal drill rod is carved with a left-hand groove.
Water well drill rod for eue in even -like, attaches according to the petroleum drilling tool size processing, also may defer to the user request processing.
Hollow hexagonal drill rods with tapered connection for rock drilling
There were a lot of difficulties when the traditional fatigue lifespan assessment method is used in evaluating drill rod lifespan.
The generously designed drill rod clamping device can be opened up fully to enable the installation of drilling tools and drill casings exceeding 171/2" (444 mm) in diameter.
By testing vibration frequency, moving speed of drill rod, atmospheric temperature, pressure and consumption, a test report is automatically worked out.
The extensive range of optional equipment includes hydraulically operated drill rod clamps, rotary casing drives and casing oscillators.
Automatic drill rod exploration control system based on VFP relational database
Ever since 1998, corrosion of drill rod and minor corrosion leakage have occurred in Pinghu oil Field in East China Sea.
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