... . Non-welded bow spring casing centralizer 2. Modle:Self (double)-bow 3. Competitive price Casing CentralizerSpare Parts Compact was established in 1980. ... (TCI bit and steel tooth bit),PDC bits, drill pipe,casing centralizer,fishing tool,drag bit,drill collar,put together the long ... standards. · 4. Alternative turbulence plates can enhance displacement efficiency effectively. Casing Centralizer