melt-blown filter and activated carbon filter. on one filter can be implemented on removing impurity, adsorption and eliminating peculiar smell. for double levels filter, the first level is melt-blown cartridge which use nontoxic and tasteless polypropylene as raw material with gradient aperture technology...
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profiles and in making pipes (from guttering to sewers, and ducting for cables). figure uses of poly(chloroethene). it is also much used for packaging, including film for food and bottles. wire and cable insulation and sheathing, for example in telephones, computers as well as for power transmission...
the polymer chains. uses of polyesters polyesters are extremely important polymers. their most familiar applications are in clothing, food packaging and plastic water and carbonated soft drinks bottles. the most used of the polyesters has the formula: being an ester, it is made from an acid, benzene...