... Copolyformaldehyde Resin, Acetal copolymer, POM (Polyacetal), CAS NO.:24969-26-4, 1,3,5-Trioxane,polymer with 1, 3-dioxolane ... Copolyformaldehyde , Acetal copolymer, polyxymethylene, POM(Polyacetal) CAS NO.:24969-26-4, 1,3,5-Trioxane,polymer with 1, 3-dioxolane ... Fittings Thin-walled Parts Automotive Exterior Parts Gears Valves/Valve Parts Aumomotive Under the Hood pining Wheels Bearings Pump ...