GB/T 1236-2017 工业通风机 用标准化风道性能试验

文件大小 : 12.38 MB

文档格式 : PDF电子版

文档分类 : 国家标准

更新时间 : 2024-04-19 11:50:31


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/25/67/68/2567683.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182