Type GGQZ casing scraper is a kind of tubing and casing cleaning tool, using integral annular scraper structure. This scraper is a non_rotary scraper, can be used with other tools, when other tools need to rotate, this scraper part is not rotating, with the upper and lower joint rotating, will not affect the use of scraper and other tools. Drop proof because of integral scraper design, circular scraper 360 degree full coverage, ensure no dead Angle of scraping, improve the efficiency of scraping.