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: 封丘县| 高密市| 亚东县| 衡阳市| 张家港市| 遵化市| 日喀则市| 浪卡子县| 甘洛县| 武鸣县| 临泽县| 大港区| 南皮县| 黔西县| 宁德市| 裕民县| 洪洞县| 开平市| 彭山县| 禹城市| 星子县| 太和县| 天门市| 五峰| 临江市| 集安市| 岫岩| 武鸣县| 加查县| 深圳市| 怀来县| 苗栗市| 濮阳县| 岑巩县| 台东县| 诸暨市| 县级市| 齐齐哈尔市| 南涧| 沧州市| 渝北区|