... -0914.because Rixin flow meter with first-class measuring system,high-tech products,zero defect quality guarantee.we ... name item nameDaqing Oilfield,Chinafeedstock,light gasoline,high temperature residueHuabei Oilfield,Chinawater,sewage,Single well oilwater,sewage, ... well oilnatural gas,base oilShengli Oilfield,China high temperature residue,natural gas,sewage.Zhongyuan petroleum,Chinawater,sewage, ...