USE OF HYALURONIC ACID GEL FILLER TO IMPROVE CONTACT LENS WEAR IN PATIENTS WITH DEEP SUNKEN SUPERIOR SULCUS


Wear Behavior of CuSn Coated Piston Ring Sliding against Nodular Cast Iron Cylinder Liner under Heavy-Duty Conditions

In order to investigate the friction and wear behavior between the nodular cast iron cylinder liner (Fe) and CuSn coated piston ring under heavy-duty conditions, piston rings with chromium(Cr) coating and CuSn-Cr coating were tested using the piston ring reciprocating liner test rig at the simulated working conditions of Makeup Removers 56 MPa, 200

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