Warning: file_put_contents(/www/wwwroot/zidian/02956.cn/cache/b545d922134c9bc10dac8070fcd79074.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/02956.cn/index.php on line 58 ceramic backing welding例句_ceramic backing welding英汉例句_ceramic backing welding双解例句_花灯集英语字典
Experiments on CO2 gas shielding GDQA308L flux cored wire one side welding using ceramic backing were also implemented. 对CO2气保护药芯焊丝GDQA308L配合陶瓷衬垫单面焊双面成形进行了试验。