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Valavu Yoyang'anira Chitsulo Chopangira
Valavu yowunikira zitsulo zopanga, valavu yowunikira swing, valavu yowunikira piston (valavu yowunikira kukweza)
M'mimba mwake: 1/2″-2″, 800lbs-2500lbs,API602
Boneti yolumikizidwa/boneti yolumikizidwa/boneti yosindikizidwa (PSB)
Thupi/bonnet/Disiki: A105/F304/F316/F11/F22/LF2/Monel etc
Kukonza: 13CR+STL/F304/F316
NORTECHis imodzi mwa mayiko otsogola ku ChinaValavu Yoyang'anira Chitsulo ChopangiraWopanga & Wopereka.