GB/T 1687.4-2021 硫化橡胶在屈挠试验中温升和耐疲劳性能的测定第4部分∶恒应力屈挠试验

文件大小 : 6803.04 KB

文档格式 : PDF电子版

文档分类 : 国家标准

更新时间 : 2023-12-08 08:20:50


Warning: get_headers(): SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182

Warning: get_headers(): Failed to enable crypto in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182

Warning: get_headers(https://img.0ppt.com/61/11/74/61117413.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182