Products and technologies and other thick blade helical blade segment: Compared with the rolling technology, molding accuracy, high rate of qualified products to meet the low-volume, personalized supply requirements Ning spiral blade machining, especially for large size, large thickness and wear-resistant steel, stainless steel spiral blade production. Vinegar spiral blade rust method rusty auger blade into the vinegar soak, it is easy to fall off the rust after removing the rust with a fine brush Ning helical blades on companies to accessories, and then put into vinegar within a short soak, remove wipe dry, then coated with anti-rust oil. Ning spiral blade machining, Ning spiral blade is provided by Ning County Ruifeng Ruifeng machine parts processing department. Ning County Ruifeng machine parts processing department (sdysjx.cn.s07.ctrl.net.cn) strong, credible, in Dezhou agricultural machinery industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead Ruifeng innovative ideas into the brilliant and you work for a better future!