No.29Panlongshan Rd., Jiangyin, Jiangsu, China,210000
We\'re a Sino-German joint venture, completely equipped for manufacturing and exporting of:-Drill Collar, Non-Magnetic Drill Collars, Spiral Collar With Elevator & Slip Groove;-Integral Heavy Weight Pipe, Integral Kellys;-WZ Type straight blade ...
drill collar, drill pipe