喷水国产一二三区_日韩无码一级精品精品一级一区二区精品_美女裸体日韩成人网站在线观看免费_欧美日韩清纯综合网_欧美激情性?片在线观看不卡_大学生高潮无套内射视频_日本少妇精品中文_高清精品三级国产_国产女同一区二区_亚洲成年人啊啊aa在线观看

welcome to Baoji BaoTi Metal Products Co., Ltd.!

Baoji Titanium: introduction of germanium

[ Info Diffusion:Admin | Times:2018-01-18 | Hits:1332 ]

Germanium is an element number 32, atomic weight 72.59. It has long been used in many high-tech fields such as modern communication, electronic computers, space development, energy utilization, etc. It has now been found that the element of strontium has the ability to combine with hydrogen ions in the body, and is excreted in the form of urine or sweat, thereby enhancing oxygen in the body. The supply helps to accelerate metabolism and delay cell aging.