Warning: mysqli_query(): (HY000/1030): Got error 28 from storage engine in /www/wwwroot/jiaju.dianpusou.com/wp-includes/wp-db.php on line 1942
42crmo硬度多少 – 家居日记

42crmo硬度多少

42crmo硬度多少
42CrMo的最高硬度可达55-60HRC,属于高强度合金结构钢,但不属于不锈钢的范围。此外,42CrMo含有不错的强度、韧性,淬透性是比