Beijing superior Drilling Equipment Co., Itd is a comprehensive enterprise set PDC bits, tricone bits production sales. The company was founded in 1989, covers an area of 27 acres, is located in the vast expanse of Hebei Plain, is located in the central area of the major oil fields, unique geographical location, has a strong design, development and production capacity.
There are two types of safety card for the flat joint pipe and drill collar, WA-C type for the diameter of 3 1 / 2-15 5 / 8in (88.9-396.9mm), WA-T type for the diameter of 1 1 / 8-4 1 / 2in (28.6-114.3mm). Kawa is used to stuck and hang down the drill pipe, drill collar, power drill, casing and other tools. According to the structure is divided into three-piece, four-piece, multi-chip three. According to the use of Kawa is divided into drill pipe kava, drill collar Kava and casing kava three.