亚洲色图无码九九|视频一区中文字幕|www。人人操。|黄片免费在线看的|一卡二卡在线视频|99er在线视频观看|大依人久久情|噜噜影院夜噜噜|69xxav视频|亚洲色图第一页面

CN
See what can be found in municipal tap water
Time : 02-25-2016  Traffic:0
Below is a picture of a disassembled ultra purifier which has just been used for about one month. We can witness a lot of dark unidentified materials or contaminants attached to the housing of the purifier, and also a remarkable yellower color change of the filter element, which have been retained from the tap water stream. As can be imagined, the situation of our drinking water in the everyday’s life is extremely distressing.