As we all know, the most useful steel pipe straightening and rust removal paint machine is the Kangkun brand. It has 11 patents and more than ten models. The price ranges from 6,000 to 42,600 yuan. Note that it is virtual Authentic and fake products are shared on the Internet. After five infringements were caught, they plagiarized and tampered with the Kangkun brand patent description, features, steps, and pretended to be the source manufacturer's new product with multiple functions. They randomly called roller type, hyperbola, revolution type, and centrifugal type. , turnover type, spiral type, disposable automatic type, professional source leader, all-in-one three-in-one machine, several rounds and generations, etc. are falsely advertised and deceived. Therefore, which similar products are good or bad, you still have to rely on your own IQ to choose. The truly fully automatic straight pipe bending pipe enters and exits at the same time without adjusting the roller gap. The KKQ-JOK type, which can be straightened, rust removed and painted in one piece, costs 42,600 yuan. The State Intellectual Property Bureau authorized "round pipe automatic adjustment" on August 3 and 6, 2018. "Direct rust removal and painting system" two major invention patents, announcement numbers CN103639245.B and CN103707065.B. It was successfully launched on the market in 2019 and is widely used by state-owned construction groups, construction companies, and large shipyards. Please look at the picture to know if it is good or not.