香蕉蜜臀AV天堂资源网,国产AV日韩AV无码AV天堂,久久精品波多野结衣中文字幕,综合69久久夜色精品国产69

Product Introduction

PDC thrust bearing: Suitable for downhole conditions. The test results show that under the condition of open mud lubrication and cooling, the maximum specific pressure is 32MN/m, the speed is 400rev/min, and the PV value is up to 30MN/mm/s. The PDC thrust

product name:Type 3 PDC thrust bearing
Release time:2018-11-20 16:27:00
Times of browsing:
  •  

  • The specifications:φ124 xφ80 x H26 φ148 xφ91.5 x H26 PDC bearings can withstand immense pressure from an enormous axial load, have enormous resistance, and work under high temperatures of about 233 degrees Celsius.
    The PDC has a smaller coefficient of friction and is not affected by natural and chemical substances in the drilling fluid. Each pair of PDC thrust bearings consists of upper and lower rings. Each of which consists of a carbide ring and a composite sheet.
+86-756-3928226+86-756-3928226
企業(yè)郵箱
主站蜘蛛池模板: 泊头市| 靖远县| 湾仔区| 吉林市| 长宁县| 文安县| 克山县| 青海省| 南宫市| 镇宁| 广宁县| 临泽县| 清流县| 荔波县| 西乌珠穆沁旗| 安阳县| 弥渡县| 新津县| 临城县| 宜良县| 兴城市| 龙山县| 南华县| 申扎县| 曲周县| 大足县| 柘城县| 铜山县| 平远县| 余庆县| 盱眙县| 大安市| 博湖县| 乌恰县| 东乌珠穆沁旗| 上高县| 黄冈市| 平远县| 浦江县| 洛隆县| 阳原县|