rock drill steel
... rock-drill steel 钎子钢 Rock Drill Steel 凿岩钎钢 ; 钎头 unmounted rock drill 手持式凿岩机 ...
基于254个网页-相关网页
凿岩钎杆用中空钢 Hollow rock drill steel
·2,447,543篇论文数据,部分数据来源于NoteExpress
为了提高凿岩钎杆用中空钢的使用寿命,设计了奇数边截面形状的中空钢。
In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
youdao
应用推荐
模块上移
模块下移
不移动