API 674 MUDKING , Weatherford,Pertamina,Sinopec,CNPC,CNOOC As same as SPM TWS-600. Use:YL-600(S)(TWS-600(S)) ... -600(S))intermittent plunger pump for oil well work, such as: acidification, cementing, fracturing, etc.. cover well, operation. Is a high ... .3.Packing optional components, valve train, exhaust flange, sinks, such as sunction pipes in order to adapt to and meet the ...