璐甸??/span>娉℃搏澧╁?????????绫?/span>锛?
???????ц蒋纭??搴?nbsp;
杞?川????纭?川??纭?川娉℃搏濉??????ㄧ?稿?婀垮害涓?3锛???50锛??讹?寮规?фā??澶т?700MPa??涓虹‖璐ㄦ场娌??浠?浜?70锛? 700MPa??涓哄??纭?川娉℃搏锛?浣?浜?70MPa??杞?川娉℃搏??
浜??????у?搴﹀ぇ灏?
浣???娉°??涓???娉″??楂???娉″?????浣???娉℃????瀵?搴︿负0.4g/cm3 , 姘?浣?/?轰?<1.5??娉℃搏锛?涓???娉℃????瀵?搴︿负0.1-0.4g/cm3 , 姘?浣?/?轰?=1.5-9??娉℃搏锛?涓???娉℃????瀵?搴︿负0.1g/cm3 , 姘?浣?/?轰?>9??娉℃搏??