F - Mech Eng,Light,Heat,Weapons – 16 – K
Inventor
F - Mech Eng,Light,Heat,Weapons
16
K
Inventor
Country: United States Of America
Improved seat for gate valve
Metal-to-metal wellhead seal for rough casing
Method of assembly and apparatus for cooling syngas
Radiant coolers and methods for assembling same
Valve stem-to-bonnet backseat
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