Is the tap water filter useful ???? Most of China's modern household water is municipal tap water. the current situation of serious pollution of tap water has become a fact that is obvious to all. people's awareness has also become sharp day by day. many people are worried about the water quality of home tap water, many people may have heard that water filters are installed at home to clean water, that is, water purifiers sold in the so-called market, but is water filters really useful? The following Net analysis of the role of household tap water filter.Water purifiers with different kinds of lights have different functionsThe household tap water filter is divided into many kinds. there is a simple filter, that is, it is installed on the tap, but it is also filtered by several layers, just better than the tap water. For example, the filter of a single sintering ceramic filter element, but it contains several kinds of faucet water purifiers with low cost. There are also good RO pure water machines, su
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How to reduce the cost of making sheets with three-roller Calender process? 1. add filler,Mainly talcum powder,Light calcium, etc.2. whitening is mainly added with titanium dioxide and fluorescent whitening agent,Generally no more than 3%.3. if the production is transparent,It mainly adds transparent pigments to color PP (polypropylene) thermoforming sheets,At present, it is the most widely used and most used type of sheet in domestic positive pressure thermoforming.Even in the entire family of thermoforming sheets,Has long since come back to home,It is almost equal to the amount of PVC and PS materials.At present, the 'one-time' plastic frozen Cup, drinking water sanitary Cup, soymilk Cup, bean curd box and so on, which can be seen everywhere in the market, are almost completely processed by PP sheet heat forming;In the 'one-time' plastic yogurt cup market where the annual domestic production has reached dozens or even tens of billions,PP materials also occupy more than half of the country;In daily life, t
