... provide you at least above US$10000.JK-HTS-A Head Three Stethoscope (Main materials) Steel, Plastic ... models use stethoscope, configuration a Auscultation head, a bell-shaped head and a Table type head.Auscultation head ... of high tissue density, there will be no sand-hole, propagation of sound clarity.2, ... with CNC lathe, high precision with precision, no noise when auscultation.3, hose connections and ...