The protective function of film masks is very strong, far better than ordinary masks. Answer this question from two perspectives. First of all, the filtration effect of membrane masks is better. This is mainly …

Three layers and five layers of high-efficiency filter paper are laminated on various fabrics and substrates using a special process and can become a new type of filter material. It has excellent corrosion resi…

The fiber diameter of the disposable cloth mask filter membrane is between 100 and 200 nanometers, which can better prevent fine dust from entering the filter material, just like a first layer of artificial dus…

Three-layer and five-layer high-efficiency filter paper has many uses and can play an important role in industrial sectors, electronics factories, military equipment, medical and health care and scientific rese…

Although a certain amount of colorant is added to the ptfe bubble point film composite material, it still has good electrical insulation and is suitable for the insulation and classification identification of w…

The three-layer and five-layer high-efficiency filter paper has a smooth surface and is resistant to chemicals. It is laminated to the surface of ordinary filter materials and functions as a disposable dust lay…

The fiber diameter of the three-layer and five-layer high-efficiency filter paper is between 100 and 200 nanometers, which can better prevent fine dust from entering the filter material. It is like a first laye…

Three-layer and five-layer high-efficiency filter paper is made of polytetrafluoroethylene (ptfe) material through special processes such as mixing, extrusion, extrusion, calendering, and biaxial stretching. Th…

Thin-film solar cells can be manufactured using low-cost glass, plastic, ceramics, graphite, metal sheets and other different materials as substrates. In addition, they are not affected by price fluctuations of…