Taper/Taper adhesive-bonded Joint © 2012 National Oilwell Varco. All rights reserved. CH7216 supersedes FP 962 - June 2012 www.fgspipe.com • fgspipe@nov.com Key-Lock ® mechanical Joint After mining in Ostrava, the region was restricted some 15 years ago, still having a necessity to dewater several old caves. Diamo s.p. is responsible for the dewatering activity and used heavy wall steel pipe which often had to be repaired or replaced due to

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