The principle of home electronic sphygmomanometer adopts oscillometric method, which is accurate in principle. Its clinical verification is designed by auscultation method as a standard and statistical method. In modern indirect blood pressure measurement method, it is divided into auscultatory meth

The laboratory equipment is the latest comprehensive analyzer in China. One instrument can satisfy C, S, Mn, P, Si, Cr, Ni, Mo, Cu, Ti, V, Al in steel and its alloy materials. , W, Nb, Mg, total amount of rare earth, Co and other elements are detected. There are five large channels (and can be set t