Warning: file_put_contents(): Only 0 of 4754 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 green sand core例句_green sand core英汉例句_green sand core双解例句_食材铺反向词典
Green-sand is easy to prepare by mixing and needs no treatments after formation. It can be poured immediately after core setting. 湿型砂混制简单，成型后不需要任何处理，下芯后可浇注。