免费观看一级黄色毛片-成人一级毛片黄色短视频-一级a一片久久免费-下载1级免费黄片-a级免费视频在线-欧美三级片成人在线-一级黄色视频在我-‘一级毛片一级黄片-搜索欧美黄色为录像1级片

Contact

TEL:0512-57178786
FAX:0512-57730441
MANAGER YUAN:13451630980
E-MAIL: sales@ks-hl.com
ADDRESS:No. 169, Xingke Road, high tech Zone, Kunshan City

Industry news

Inventory of common types of high temperature resistant materials
Release time: 2022-06-07

High temperature resistant material refers to the material that can withstand certain stress under the temperature above 550 ° C and has the ability of oxidation resistance and thermal corrosion resistance. Such material is widely used and often used in some high-temperature fields such as engine, rocket engine, aircraft, rocket tail and boiler. It is a very practical material. Of course, it has also been widely used.