Warning: file_put_contents(/home/www/wwwroot/zidian/69228.com/cache/8f8614ae5c618aa1d86efabccfeebf34.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/69228.com/index.php on line 55 国产精品视频www,亚洲а∨天堂2021在线网站,亚洲不卡一卡2卡三卡4卡
It is indicated that a gradual fiber distribution with no delam ination and excellent heatproof can be obtained by the squeeze casting for the g radient aluminum matrix composites. 且采用該材料制造的活塞頂具有良好的隔熱效果。