After the workpiece is tempered by the high-frequency quenching machine, what are the commonly used cooling methods? - ʻO ka umu hoʻoheheʻe hoʻoheheʻe, ka umu hoʻoulu hoʻokomo, ka umu paʻa paʻa, ka umu Muffle, ka brick brick refactory, ka hale hana Kina, mea hoʻolako, mea hana, mea kūʻai nui

Warning: mysqli_query(): (HY000/1030): Got error 28 from storage engine in /www/wwwroot/songdaokeji.cn/wp-includes/wp-db.php on line 1924
After the workpiece is tempered by the high-frequency quenching machine, what are the commonly used cooling methods? - ʻO ka umu hoʻoheheʻe hoʻoheheʻe, ka umu hoʻoulu hoʻokomo, ka umu paʻa paʻa, ka umu Muffle, ka brick brick refactory, ka hale hana Kina, mea hoʻolako, mea hana, mea kūʻai nui