F - Mech Eng,Light,Heat,Weapons – 16 – K
Inventor
F - Mech Eng,Light,Heat,Weapons
16
K
Inventor
Country: Canada
Method of repairing cylindrical workpieces and lathe therefor
Method of repairing cylindrical workpieces and lathe therefor
Pigging ball valve
Thread cutter
Threaded connection for drill pipes
Method of repairing cylindrical workpieces and lathe therefor
Method of repairing cylindrical workpieces and lathe therefor
Pigging ball valve
Thread cutter
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