countersink head bolt是什么意思，countersink head bolt的翻译，countersink head bolt音标、读音、用法和例句

Warning: file_put_contents(): Only 0 of 4779 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/cp667.com/index.php on line 55
countersink head bolt是什么意思，countersink head bolt的翻译，countersink head bolt音标、读音、用法和例句_淳朴汉英词典

countersink head bolt

基本解释

专业释义

機械工程