Isotopes, tungsten alloy pumping hydraulic system, can/needle protective cover for pumping fluid syringes Tc is used in¹⁸F,¹³¹I,⁹⁹Tcthree nuclide tungsten carbide shielding material, the health protection quality monitoring center of radiation protection equipment testing its performance meet national standards. Products are: 100 grade cleanse, glove box, radiation protection box, L - screen, lead and lead glass, radioactive adsorption system, various BD needle.