|       Product name  |           250 rubber pin screw  |    
|       Material  |           42CrMo (38CrMoAIA) (9Cr18Mov) etc.  |    
|       Dimensions  |           ∅5-∅1500mm  |    
|       Heat treatment process  |           Nitriding, vacuum quenching, salt bath quenching  |    
|       Surface treatment  |           Chrome plating, nickel plating, Teflon plating, PVD  |    

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