SMS Group （SMS）developedPQF?（Premium Quality Finishing）Three roll continuous rolling technology has become the mainstream solution for efficient production of hot-rolled seamless steel pipes worldwide。 Compared to traditional two rollersMPMCompared to technology，PQFThe rolling mill consists of up to six three roll stands，Rolling force is more evenly distributed in the circumferential direction，Can achieve an increase in rolling speed15%、energy consumption reduction8%。This technology is particularly suitable for the production of high alloy steel pipes and thin-walled precision pipes，By reducing reheating during the rolling process，Save tool and energy costs，Simultaneously reducing carbon dioxide emissions。currently，This technology has been successfully applied in domestic enterprises such as Changbao Seamless Steel Pipe Factory