... is pom tube, the main material is POM, with excellent self lubrication nature.the pom tube conformed to ISO9001 ... referred to as steelAdvantage of Pom(Polyacetal ) TubePOM1, with high mechanical strength and rigidity2, the highest fatigue strength3, ... 120 ° C)6, good electrical properties7, good resilience8, with self-lubricating, wear resistance and good9, size, stability excellentShortcoming ...