After long time research and test, the first and only one instrument in China to inspect relative magnetic permeability has been developed by Shenlong.
This instrument is computer controled. The relative magnetic permeability curve can be printed during Non-Magnetic Drill Collars pass through the inductorium.
Quality Control is the most important part during the whole production process. In China, there is no manufacturer except us will inspect the relative magnetic permeability.
Shenlong will be more professional in Non-Magnetic products.
