This International standard specifies requirements and gives recommendations for the design, manufacturing, testing, and documentation of ball, check, gate, and plug valves for application in pipeline systems.
Great book! I'm am really happy with my purchase because this book is really informative and was what I need to prepare for my exam.David Ramirez
Lots of great information. I learned different study methods as well. Thanks to the help of Contractor Campus online courses and in person classes.
Jessica Andrade