» First class - impact modified nylon 6.» High dynamic and static load capacities.» Tested to ANSI/BIFMA X5.1 and DIN68 131» Stem swivels on a plastic ball.» The wheels and stems are lifetime lubricated with a lithium based grease.» Color - Black» Hard floor - special soft tread of polyurethane, core of polyamide 6.
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