Welded bow-spring centralizers provide excellent downhole durability and performance. These centralizers feature heat-treated, spring-steel bows that are welded to rigid end collars. Applications 1、Cased and open holes 2、Vertical or slightly deviated wells 3、Under reamed and washed-out wells Features, Advantages, and Benefits 1、The high-quality, spring-steel bows are heat treated to optimize standoff in gauge holes, under reamed holes, and washed-out sections. 2、Various bow shapes and heights are available to provide optimum restoring forces for most well requirements.