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发布日期:2021年12月04日

强奸女大学生 强奸女大学生 ,gif老司机出处抽搐 gif老司机出处抽搐

发布日期:2021年12月04日
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DATE: 2021-01-04
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强奸女大学生 强奸女大学生 ,gif老司机出处抽搐 gif老司机出处抽搐
  Gland packing
  Hydraulic seal
  Sheet/ Gasket
  Mechanical seal
  Disc spring
  Soft packing
  Oil seal/ Water seal
  Graphite ring
  High temp sealant
  Special tool强奸女大学生 强奸女大学生 ,gif老司机出处抽搐 gif老司机出处抽搐
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Pre-load Disc Spring

Pre-load Disc Spring
 

 Pre-load Disc Spring

 Model:ASL 620

 Features:

 Pre-load Disc Spring has superior temperature compensation function, can compensate for thermal expansion and contraction caused by repeated changes so that ensure there is no slack bolts at high temperature and low temperature,then remained the pre-tighten purpose stable, and can effectively absorb mechanical vibrations, avoid loose bolts caused by mechanical vibrations, ensure seal durable and reliable, prevent bolt fatigue and gasket failure.

 Application:

 Suitable for all kinds of flange bolt pre-tightening in high temperature. Such as various pipe flange, valves, heat exchanger, reactors, mixer, pumps, centrifuge and others flange bolt pre-tightening. Especially the bolt connection positions of the temperature difference more than 100℃.

 Specifications:

 common specifications M8 ~ M72, also can be manufactured according to user requirements.

 Working temperature:

 Optional material temperature range is -240 ~ + 750 ℃.

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