The following describes the NIOSH policy for respiratory protection against airborne exposures to crystalline silica. NIOSH recommends using half-facepiece particulate respirators with N95 or better filters for airborne exposure to crystalline silica...…
Silicon powder deep processing uses physical methods to process and purify industrial silicon powder. This technology uses ordinary industrial silicon as the production material, which is processed through physical methods and controlled by an automa...…
Nanoparticles have a number of practical applications, including the conversion of harmful pollutants into less harmful ones. For example, nanoparticles have the ability to transform trichloroethene.…
0086-0379-64280201
brad@ihpa.net
skype
whatsapp