Detail information of the pistons:
1.Piston PTFE band material:DYNEON TFM 6302 PTFE or Dupont teflon NXT or equivalent.
2.The area of valve seat surface must not be damaged.
3.Scores, scratches or other irregularities on outside diameter of band are not permitted.
4.Hardness:70-90HRB
5.No permanent deformation or cracks after stress crackiing test 150ºС*500Hours.
6.Outer diameter is 27mm
7.Material:iron powder metallurgy
8.Molding:form in one piece & sizing
9.Efficiency steaming treatment
10.Density of powder metallurgy piston:no less than 6.3g/cm3
of powder metal parts for shock absorber such as rod guide, piston, valve plate, Du bearing
in rod guide, PTFE banded piston, all made in-house.We have precise apparatus to test these parts.
Our powder metallurgy parts enjoy reputation both in Chinese and Oversea Market.
"We will do our best to cooperate with you!And it will be a pleasure to send you some samples for testing purpose.
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"Please contact with me at any time, your interest will be well appreciated!