玩弄少妇秘书人妻系列,欧美人与动交视频在线观看,在线 国产 欧美 亚洲 天堂,高中女无套中出17P

Tungsten Alloy Square Brick

Tungsten alloy square brick has high melting point, low vapor pressure and low rate of evaporation. Its chemical properties are very stable, it does not react with air and water at normal temperature, and it is insoluble in hydrochloric acid, sulfuric acid, nitric acid and alkali solution. It is widely used in mining, metallurgy, machinery, construction, transportation, electronics, chemical, light industry, textile, military, aerospace, science and technology and other industrial fields.

More product details, please visit:
http://www.tungsten-alloy.com/tungsten-alloy-brick.html

tungsten alloy square brick pictureChinatungsten Online has a scientific management system, perfect testing methods, and sophisticated technical equipment to ensure high quality and reasonable price. In order to meet the needs of market development, the company constantly updates its products, optimizes its employees' skills, and implements after-sales safeguards for various products.

Comments are closed.

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China Copyright ? 1997 - 2025 CTIA All Rights Reserved
Phone:+86-592-5129696,+86-592-5129595;    Email: sales@chinatungsten.com
舊版