GB/T 19292.4-2018 金属和合金的腐蚀大气腐蚀性第4部分∶用于评估腐蚀性的标准试样的腐蚀速率的测定
文件大小 : 1608.36 KB
文档格式 : PDF电子版
文档分类 : 国家标准
更新时间 : 2024-01-01 15:25:53
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/61/10/48/61104831.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182