... as; Gears, Bushings, Bearings, Rollers, Timing Screws, manifolds, Valves and Valve B Polyacetal has the following characteristics: Outstanding wear resistance Low ... as; Gears, Bushings, Bearings, Rollers, Timing Screws, manifolds, Valves and Valve Bodies, Washers, Wear Pads, and many industrial machine parts. Polyacetal ... ) in 300mm, 1000mm & 4 ft. lengths. Color: White & Black pom plate