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PTFE Valve Seat, Valve pad And Stuffing Products 1 Property and  Usage:    It can be widely used in the trade of valve, mechanism and machine tool. etc.     for its good anti-corrosion and non-sticking. The strength and mechanical     property can greatly improved by adding stuffing  materials. 2 Filler     Glass fiber, molybdenum, graphite, copper power, polyimide, carbon  fiber,     silica, polyester, etc .. 3 Specification      Produce according to the requirements or the drawings of the customers.      Non-specification valve, valve seat and sealing ring can be produced     according to the drawings of the customers.                 3 Main Products     All kinds of piston rings, guide rings ,sealing     washers ,bearings ,bushes ,hydrau