Ballvalve 1 - pinhol.pt · SHELL MESC Training NEWAY ... test pet SPE 77/312). is NEWAY standard...
11
Ballvalve 1 - pinhol.pt · SHELL MESC Training NEWAY ... test pet SPE 77/312). is NEWAY standard specification tor all£eries BA, B and BB flanged tloatlng ball prnt Controlled Stem
