<rt id="qswwo"><noscript id="qswwo"></noscript></rt>
<acronym id="qswwo"><center id="qswwo"></center></acronym>
<rt id="qswwo"><small id="qswwo"></small></rt>
<rt id="qswwo"><optgroup id="qswwo"></optgroup></rt>
<rt id="qswwo"></rt>
<acronym id="qswwo"></acronym>
CHINA ENGLISH
LATEST ACTIVITIES CURRENT LOCATION:HOME > NEWS CENTER > LATEST ACTIVITIES
Kevlar/aramid introduction 發布時間:2017-08-21 14:48:05
The full name of Kevlar/aramid is P-Phenlene terephthalamide, it also called“para-ramid fiber”, is   is a new type of aramid fiber composite material(aramid 1414).It has a series of excellent properties,such as high strength, high modulus, high temperature resistant, acid and alkali resistant, low weight, good insulation and aging resistant. The intensity is 5 to 6 times compared with steel wire, 2 to 3 times of modulus,and twice when it comes to toughness. The weight is only about 1/5 of wire,and that it does not decomposed and melting at the temperature of 560 degrees. The discovery of aramid fiber material is considered to be a very important historical process.
中文字幕日本无吗mv,波多野结衣线免费观看,一本无码字幕高清在线,日产中文字幕在线观看