During the drilling operation,the valve seat conical hole in high pressure mud pump head is always in a high pressure condition thus caused it easy to wear and tear.
在钻探施工中高压泥浆泵头内瓦尔座锥孔一直处于高压状态,易于磨损,采用镗孔镶锥套方法修复,寿命短,精度也难以达到要求。
本网站所收集内容来自网友分享仅供参考，实际请以各学校实际公布信息为主！内容侵权及错误投诉：1553292129@qq.com
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号：浙ICP备2024058711号