Nota: Devi essere registrato per rispondere al messaggio. Per registrarti, clicca qui. La registrazione è GRATUITA!
R E V I S I O N E D E L L A D I S C U S S I O N E
xywyxoqulypatupuvemo
Inviata - 27/12/2021 : 16:32:41 The tool trap is mainly used for preventing instruments from falling into the well because the cable is accidently stretched breaking or released after the instrument sting is lifted to the lubricator from the well. The tool trap is normally closed when it is stopped and is put into the well to work.http://www.baojisafe.com