国产精品亚洲综合久久系列,人妻夜夜爽天天爽三区丁香花,麻豆 美女 丝袜 人妻 中文,欧美大肥婆大肥bbbbb

Welcome to Baoji Baoye Titanium-Nickel Industry Co., Ltd

Development and Prospect of Titanium in the Feild of Building Material

In Japan, the use of titanium materials from 1986 to 1999 a total of 2001 t, the scale of the current market has grown to 200 t/a. Specifically used in the outer wall of the part of the building, roof 63%, ektexine 31%, monuments and other 6%. Building materials basically is 100% of pure titanium, the corrosion resistance respectively accounts for 60 to 80%.