This rotary blade adopts circumferential scraping, with beveling function, and has a long service life. This rotating scraper has a smooth cut and is fast. Design concept, scientific mechanics display, simple operation, time-saving and labor-saving. Full name: rotating scraper. Function: Scrape off the oxide layer on the fused pipe fittings. For pipe diameters 63mm-400mm, scraping. This rotary scraper has long served major gas companies such as China Gas, PetroChina, Xinao Gas, Beijing Gas, and Aode Gas.