The Quick Details of Sucker Rod Centralizer : Place of Origin: Luoyang ,China Material: Nylon with 30--35%of fiberglas intensifier and wear - resistant additive Brand name: GUORUNXINCAI Colour: Natural colours,Black,grey Model: 19mm 22mm 25mm 29mm The Attributesof Sucker Rod Centralizer for Oil Extraction : 1 The Sucker Rod Centralizer that can reduce torque and friction to the utmost are coordinators of drivepipes , tail pipes and sieve pipes . 2 With the help of Sucker Rod Centralizer , life span of Pumping unit can be increased . 3 The Sucker Rod Centralizers are with wear resistant,self-lubricating and good chemical stability. 4 The installations of Sucker Rod Centralizers are convenient and efficient .