GB/T 18743.2-2022 热塑性塑料管材 简支梁冲击强度的测定 第2部分:不同材料管材的试验条件
文件大小 : 2.04 MB
文档格式 : PDF电子版
文档分类 : 行业标准
更新时间 : 2024-08-24 08:30:45
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/20/62/57/2062571.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182