| GB/T 19494.1-2023煤炭机械化采样 第1部分：采样方法标准基础信息 | |||
| 标准编号 | GB/T 19494.1-2023 | 标准名称 | 煤炭机械化采样 第1部分：采样方法 |
| 批准日期 | 2023-11-27 | 实施日期 | 2024-03-01 |
Warning: Undefined array key 0 in /www/wwwroot/www_xuejiunet_com/wp-content/themes/modown/module/related.php on line 96
Warning: Attempt to read property "cat_ID" on null in /www/wwwroot/www_xuejiunet_com/wp-content/themes/modown/module/related.php on line 96
Warning: Undefined array key 0 in /www/wwwroot/www_xuejiunet_com/wp-content/themes/modown/module/related.php on line 128
Warning: Attempt to read property "term_id" on null in /www/wwwroot/www_xuejiunet_com/wp-content/themes/modown/module/related.php on line 128
评论0